A method of forming an antenna device includes: receiving a substrate formed of glass; and forming a redistribution layer (RDL) over the substrate. The formation of the RDL includes: depositing a first metallization layer over a first surface of the substrate; depositing a first patterned dielectric layer over the first metallization layer, wherein the first patterned dielectric layer has a first thickness; depositing a second metallization layer over the first patterned dielectric layer; and forming a second patterned dielectric layer over the second metallization layer. The second dielectric layer comprises a photoimageable dielectric (PID) material. The second patterned dielectric layer has a second thickness at least twice the first thickness.
C03C 17/36 - Traitement de surface du verre, p. ex. du verre dévitrifié, autre que sous forme de fibres ou de filaments, par revêtement avec au moins deux revêtements ayant des compositions différentes un revêtement au moins étant un métal
A wireless communication system includes a plurality of antennas, and a plurality of RF chips, arranged in a row and coupled to the antennas, for providing a plurality radio-frequency (RF) output signals to the antennas according to an RF signal. The wireless communication system also includes a transmission line arranged to be a straight line in parallel to the row, and to connect to the RF chips, wherein each of the RF chips is arranged to receive the RF signal by coupling a voltage signal on a corresponding connecting terminal of the transmission line, and a resistive load, coupled to a first end of the transmission line. A second end of the transmission line is arranged to receive the RF signal.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
3.
Defense device for detecting drones and jamming radio channels of drones
The present application discloses a communication system including a digitized subarray, a data generator, a modulator, a digitized control unit, and a signal generation unit. The digitized subarray includes a plurality of first transmitters, each including a power amplifier for amplifying an RF signal and an antenna element for transmitting the RF signal amplified by the first power amplifier. The data generator produces a digital data for transmission, and the modulator converts the digital data into a symbol according to a predetermined signal modulation scheme. The digitized control unit selects a portion of the first transmitters in the digitized subarray for performing amplification and transmission according to an amplitude of the symbol. The signal generation unit generates the RF signal and provides the RF signal to the selected portion of first transmitters according to the symbol.
An antenna package is provided. The antenna package includes a glass substrate, a plurality of antennas, a multi-layer circuit structure, a plurality of radio frequency chips, and a molding layer. The glass substrate has a first surface and a second surface. The plurality of antennas are arranged on the first surface of the glass substrate. The multi-layer circuit structure has a first surface and a second surface. The plurality of radio frequency chips are arranged on the first surface of the multi-layer circuit structure. The second surface of the glass substrate is adhered to the second surface of the multi-layer circuit structure. The molding layer covers the RF chips on the first surface of the multi-layer circuit structure, and forms a continuous encapsulation to the RF chips.
A controller includes a processor and a storage device storing instructions. The instructions, when executed by the processor, cause the processor to: obtain first control information on a first satellite constellation; establish a communication link between the controller and another controller of a second satellite constellation; receive second control information on the second satellite constellation from the another controller via the communication link; and perform data communication without using an intersatellite link, according to the first and second control information. The first control information indicates a first link quality between a user terminal and a first satellite of the first satellite constellation, and the second control information indicates a second link quality between the user terminal and a second satellite of the second satellite constellation. When the second link quality is higher than the first link quality, the controller selects the second satellite for data transmission.
H04W 40/12 - Sélection d'itinéraire ou de voie de communication, p. ex. routage basé sur l'énergie disponible ou le chemin le plus court sur la base de la qualité d'émission ou de la qualité des canaux
An axial ratio compensation method performed by an antenna system including an antenna array having antenna elements is provided. The axial ratio compensation method includes: when first ports of the antenna elements are excited, controlling phases at the first ports according to first beamforming information for driving the antenna array to generate a first linearly polarized beam according to a predetermined direction; when second ports of the antenna elements are excited, controlling phases at the second ports according to second beamforming information for driving the antenna array to generate a second linearly polarized beam according to the predetermined direction; compensating at least one of a phase difference an electric field magnitude difference between the first and second linearly polarized beams to compensate an axial ratio of a predetermined circularly polarized beam directed toward the predetermined direction.
H01Q 3/36 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante faisant varier la phase par des moyens électriques avec des déphaseurs variables
An axial ratio compensation method performed by an antenna system including an antenna array having antenna elements is provided. The axial ratio compensation method includes: receiving, by the antenna array, a first linearly polarized beam from a predetermined direction by enabling respective first ports of the antenna elements, so that the antenna array generates a first radio frequency (RF) signal; receiving, by the antenna array, a second linearly polarized beam from the predetermined direction by enabling respective second ports of the antenna elements, so that the antenna array generates a second RF signal, wherein the first linearly polarized beam and the second linearly polarized beam are substantially orthogonal; and compensating at least one of a phase difference and a magnitude difference between the first RF signal and the second RF signal to compensate an axial ratio of the antenna array at the predetermined direction.
An antenna measurement method includes: generating a first electrical signal and a second electrical signal by processing an input signal sent from an analyzer according to control information; driving a dual-polarized antenna to emit an electromagnetic signal toward an antenna under test (AUT) by feeding the first electrical signal and the second electrical signal to the dual-polarized antenna, an output signal being outputted from the AUT in response to the electromagnetic signal; utilizing the analyzer to generate analysis data according to the input signal and the output signal; and obtaining a polarization characteristic of the AUT by applying a predetermined data processing operation corresponding to the control information to the analysis data.
An array system for signal transmission includes a transmission line, N array elements and N capacitors. The transmission line includes N tap points. The N array elements are configured to be driven by N voltage signals fed to N input terminals of the N array elements respectively. Each array element includes a transistor, and N gates of N transistors in the N array elements serves as the N input terminals respectively. The N capacitors are arranged to capacitively couple the N tap points to the N gates of the N transistors, respectively, to provide the N voltage signals. Capacitance of each capacitor is less than input capacitance at a gate of a corresponding transistor coupled to the capacitor.
A method for testing an antenna device includes: providing the antenna device including: a first signal port and a second signal port arranged in a first layer over a first surface of a substrate of the antenna device; a first feed line and a second feed line arranged in the first layer and connected to the first signal port and the second signal port, respectively; and a radiation element disposed in a second layer on a second surface of the substrate opposite to the first surface; providing a first testing signal and a second testing signal to the first signal port and the second signal port, respectively; shielding the radiation element from radiating the first and second testing signals; and receiving a first output signal and a second output signal from the first feed line and the second feed line, respectively.
A phased array system includes a plurality of subarray units. Each of the subarray units includes a set of antennas and a processing circuit. The set of antennas is arranged to couple an input signal incident on the phased array system into a set of electrical signals. The processing circuit, coupled to the set of antennas, is configured to calculate N subarray responses for N candidate directions according to the set of electrical signals and N steering vectors associated with the N candidate directions. The processing circuit of a first subarray unit included in the subarray units is further configured to generate N combined responses for the N candidate directions by combining subarray responses from the subarray units for each candidate direction, and determine directional information of the input signal according to the N combined responses.
H01Q 3/24 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier l'orientation, par commutation de l'énergie fournie, d'un élément actif rayonnant à un autre, p. ex. pour commutation du lobe
H01Q 3/34 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante faisant varier la phase par des moyens électriques
13.
SEMICONDUCTOR PACKAGE AND METHOD FOR FABRICATING SEMICONDUCTOR PACKAGE
A method for fabricating a semiconductor package includes applying polymer-based solder paste onto a substrate; bringing a plurality of solder bumps on a semiconductor die into contact with the polymer-based solder paste on the substrate; reflowing the polymer-based solder paste to form a plurality of solder joints between the substrate and the semiconductor die, wherein a post-soldering residue is produced to encapsulate a lower portion of each solder joint; and applying an underfill between the substrate and the semiconductor die to encapsulate an upper portion of the solder joint.
A phased array transmitter includes a plurality of signal couplers arranged to receive a radio frequency (RF) input signal, and a plurality of RF transmitters coupled to the signal couplers. Each RF transmitter includes a radiating element, a chip and a phase shifting circuit. The radiating element is arranged to receive a plurality of electrical signals to produce an RF output signal. An amplifier circuit of the chip is configured to amplify the RF input signal to generate a plurality of amplified signals at a plurality of output terminals, respectively. The phase shifting circuit is located outside the chip, and coupled to the output terminals and the radiating element. The phase shifting circuit is arranged to phase shift the amplified signals, and accordingly generate the electrical signals fed to the radiating element. Respective phase shifting circuits and respective radiating elements of the RF transmitters are formed on a same substrate.
H04B 1/18 - Circuits d'entrée, p. ex. pour le couplage à une antenne ou à une ligne de transmission
H03F 3/19 - Amplificateurs à haute fréquence, p. ex. amplificateurs radiofréquence comportant uniquement des dispositifs à semi-conducteurs
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
A radio frequency (RF) phased-array detector includes a vertical antenna array, a horizontal antenna array, a multiplexer module and a processor. The vertical antenna array includes a plurality of vertical antennas, and each of the vertical antennas is configured to obtain a first input signal in response to a wireless signal from a radio-emitting source. The horizontal antenna array includes a plurality of horizontal antennas, and each of the horizontal antennas is configured to obtain a second input signal in response to the wireless signal. The multiplexer module is configured to provide a plurality of third input signals selected from the first input signals and the second input signals. The processor is configured to obtain azimuth and elevation of the radio-emitting source according to the third input signals.
H01Q 21/29 - Combinaisons d'unités d'antennes de types différents interagissant entre elles pour donner une caractéristique directionnelle désirée
H01Q 21/20 - Réseaux d'unités d'antennes, de même polarisation, excitées individuellement et espacées entre elles les unités étant espacées le long d'un trajet curviligne ou adjacent à celui-ci
18.
RADAR SYSTEM AND DATA PROCESSING METHOD FOR RADAR SYSTEM
A radar system includes a first subarray, a second subarray and a third subarray. The first subarray includes a plurality of first antennas arranged along a first direction. The second subarray includes a plurality of second antennas arranged along the first direction. The third subarray includes a plurality of third antennas arranged along a second direction orthogonal to the first direction. The third subarray is configured to combine a first set of data received from the first subarray and a second set of data received from the second subarray into a combined set of data, generate first beamformed data indicating target azimuth information by applying beamforming to the combined set of data, and generate second beamformed data indicating target elevation information according to a plurality of input signals received by the third antennas.
G01S 7/41 - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe utilisant l'analyse du signal d'écho pour la caractérisation de la cibleSignature de cibleSurface équivalente de cible
G01S 7/292 - Récepteurs avec extraction de signaux d'échos recherchés
G01S 13/02 - Systèmes utilisant la réflexion d'ondes radio, p. ex. systèmes du type radar primaireSystèmes analogues
G01S 13/58 - Systèmes de détermination de la vitesse ou de la trajectoireSystèmes de détermination du sens d'un mouvement
G01S 13/72 - Systèmes radar de poursuiteSystèmes analogues pour la poursuite en deux dimensions, p. ex. combinaison de la poursuite en angle et de celle en distance, radar de poursuite pendant l'exploration
The present application discloses a radar system. The radar system includes a first subarray, a second subarray, and a third subarray. Antennas in the first subarray and the second subarray are disposed along a first axis, and antennas in the third subarray are disposed along a second axis. When scanning a radar coverage of the radar system, the radar system utilizes the first subarray and the second subarray as RF signal transceivers and utilizes the third subarray as a RF signal receiver to scan a first detection distance range according to first signal parameters and scan a second detection distance range according to second signal parameters. A maximum distance measured from the radar system to each detectable location in the first detection distance range is less than or equal to a minimum distance measured from the radar system to each detectable location in the second detection distance range.
G01S 13/72 - Systèmes radar de poursuiteSystèmes analogues pour la poursuite en deux dimensions, p. ex. combinaison de la poursuite en angle et de celle en distance, radar de poursuite pendant l'exploration
G01S 13/02 - Systèmes utilisant la réflexion d'ondes radio, p. ex. systèmes du type radar primaireSystèmes analogues
G01S 13/10 - Systèmes pour mesurer la distance uniquement utilisant la transmission de trains discontinus d'ondes modulées par impulsions
20.
BIAS VOLTAGE GENERATING CIRCUIT, SIGNAL GENERATOR CIRCUIT AND POWER AMPLIFIER
A bias voltage generating circuit includes an amplifier circuit and a negative feedback circuit. The amplifier circuit is configured to generate a bias voltage according to a first voltage input and a second voltage input. The negative feedback circuit is coupled to the amplifier circuit, and configured to control the first voltage input. The negative feedback circuit includes a first voltage generator and a second voltage generator. The first voltage generator, coupled to the amplifier circuit, is biased by the bias voltage and configured to amplify a third voltage input to generate the first voltage input. The second voltage generator, coupled to the first voltage generator, is configured to generate the third voltage input. A ratio of the first voltage input to the third voltage input is locked according to a ratio of the second voltage input to the third voltage input.
H03F 1/34 - Circuits à contre-réaction avec ou sans réaction
H03F 1/30 - Modifications des amplificateurs pour réduire l'influence des variations de la température ou de la tension d'alimentation
H03F 3/21 - Amplificateurs de puissance, p. ex. amplificateurs de classe B, amplificateur de classe C comportant uniquement des dispositifs à semi-conducteurs
21.
Antenna package and method for manufacturing an antenna package
An antenna package is provided. The antenna package includes a glass substrate, a plurality of antennas, a multi-layer circuit structure, and a plurality of radio frequency chips. The glass substrate has a first surface and a second surface. The plurality of antennas are arranged on the first surface of the glass substrate. The multi-layer circuit structure has a first surface and a second surface. The plurality of radio frequency chips are arranged on the first surface of the multi-layer circuit structure. The second surface of the glass substrate is adhered to the second surface of the multi-layer circuit structure.
The present application discloses a radio frequency (RF) device. The radio frequency device includes a power amplifier, a power detector, and a digital signal processor (DSP). The power amplifier outputs a RF signal. The power detector receives the RF signal, and performs a plurality of calibration operations to generate a plurality of calibration voltages corresponding to a plurality of bias voltage, wherein the calibration operations are performed at the bias voltages respectively, and the calibration voltages are temperature-correlated due to that electrical characteristics of the power detector are temperature-correlated. The DSP controls the power detector to operate at the bias voltages, obtains an index voltage for indicating power of the RF signal by performing calculations upon the calibration voltages to reduce temperature dependency of the index voltage, and adjusts a gain of the power amplifier according to the index voltage.
A method for manufacturing a first radio-frequency (RF) device, including: receiving a substrate having the first RF device, wherein the first RF device has a signal port for receiving or transmitting RF signals with an input impedance greater than ten times an input impedance of a testing tool; causing a probe assembly to connect to the signal port and the testing tool; and causing the probe assembly to connect to a first terminal of a resistive element having a resistance equal to the input impedance.
The present application discloses a beamforming antenna device and a method for operating a beamforming antenna device. The beamforming antenna device includes a plurality of antenna elements and a plurality of sub-arrays. The plurality of sub-arrays are coupled to the plurality of antenna elements. Each of the sub-arrays is coupled to its adjacent sub-arrays of the plurality of sub-arrays, and at least a portion of the plurality of sub-arrays form a sub-array chain.
H01Q 3/26 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante
A method of testing an antenna array includes: receiving a probe needle set and a shielding structure, wherein the shielding structure includes an array of conductive pads. The antenna array includes a substrate and an array of antenna devices. Each of the antenna devices includes: a first and a second slits; a first and a second signal ports; a first and a second feed lines. The first and second feed lines have different line lengths; and a radiation element. The method further includes: causing the shielding structure to cover the radiation element of at least one antenna device; and causing the probe needle set to contact the first and second feed lines for testing the at least one antenna device.
A wireless communication system includes a plurality of antennas, and a plurality of RF chips, arranged in a row and coupled to the antennas, for providing a plurality radio-frequency (RF) output signals to the antennas according to an RF signal. The wireless communication system also includes a transmission line arranged to be a straight line in parallel to the row, and to connect to the RF chips, and a resistive load, coupled to a first end of the transmission line. A second end of the transmission line is arranged to receive the RF signal.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
28.
Phased array antenna with independent signal calibration
An antenna device includes: a substrate; a first ground plate arranged in a first layer and disposed on the substrate; a first signal port and a second signal port arranged in a second layer adjacent to the first layer and configured to transmit a first radio-frequency (RF) signal and a second RF signal, respectively; a first feed line and a second feed line arranged in the second layer and connected to the first signal port and the second signal port, respectively; and a radiation element disposed over the substrate. The substrate is arranged to provide a first signal channel and a second signal channel between the radiation element and the first or second feed line for transmitting the first and second RF signals, the first feed line and the second feed line have different line lengths, and the radiation element at least partially overlaps the first and second signal channels.
H01Q 3/26 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante
H01Q 1/48 - Moyens de mise à la terreÉcrans de terreContrepoids
H01Q 3/36 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante faisant varier la phase par des moyens électriques avec des déphaseurs variables
An antenna package structure is provided. The antenna package structure includes a glass substrate, an interconnect structure, a plurality of semiconductor chips, and an antenna array structure. The glass substrate has a first surface and a second surface opposite to the first surface. The interconnect structure is disposed over the first surface of the glass substrate. The plurality of semiconductor chips are mounted over the interconnect structure. The antenna array structure is formed on the second surface of the glass substrate. Furthermore, the plurality of semiconductor chips are coupled to the antenna array structure through the interconnect structure and the glass substrate.
H01Q 1/38 - Forme structurale pour éléments rayonnants, p. ex. cône, spirale, parapluie formés par une couche conductrice sur un support isolant
H01L 23/00 - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
H01L 25/03 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans une seule des sous-classes , , , , ou , p. ex. ensembles de diodes redresseuses
H01Q 3/36 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante faisant varier la phase par des moyens électriques avec des déphaseurs variables
30.
Satellite communication system having interconnected constellation and method for operating satellite communication system
A method for operating a satellite communication system includes: interconnecting a first controller of a first satellite constellation and a second controller of a second satellite constellation in the satellite communication system to form an interconnected constellation, wherein the second satellite constellation is different from the first satellite constellation, and the interconnected constellation comprises the first satellite constellation and the second satellite constellation; utilizing the first controller to obtain first control information on the first satellite constellation, and receive second control information on the second satellite constellation from the second controller; and performing data communication via the interconnected constellation according to the first control information and the second control information.
H04W 40/12 - Sélection d'itinéraire ou de voie de communication, p. ex. routage basé sur l'énergie disponible ou le chemin le plus court sur la base de la qualité d'émission ou de la qualité des canaux
A radio frequency (RF) transmitter includes a radiating element, a chip and a phase shifting circuit. The radiating element is arranged to receive a plurality of electrical signals to produce an RF output signal. The chip includes an amplifier circuit. The amplifier circuit is configured to amplify an RF input signal to generate a plurality of amplified signals at a plurality of output terminals, respectively. The phase shifting circuit is located outside the chip, and coupled to the output terminals and the radiating element. The phase shifting circuit is arranged to phase shift the amplified signals, and accordingly generate the electrical signals fed to the radiating element. The phase shifting circuit and the radiating element are formed on a same substrate.
H04B 1/18 - Circuits d'entrée, p. ex. pour le couplage à une antenne ou à une ligne de transmission
H03F 3/19 - Amplificateurs à haute fréquence, p. ex. amplificateurs radiofréquence comportant uniquement des dispositifs à semi-conducteurs
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
A radio frequency (RF) receiver includes a radiating element, a chip and a phase shifting circuit. The radiating element is arranged to receive an RF input signal to produce a plurality of electrical signals. The chip includes an amplifier circuit. The amplifier circuit is configured to receive a plurality of phase shifted signals from a plurality of input terminals respectively, and amplify the phase shifted signals to generate an RF output signal. The phase shifting circuit is located outside the chip, and coupled to the output terminals and the input terminals. The phase shifting circuit is arranged to phase shift the electrical signals and accordingly generate the phase shifted signals. The phase shifting circuit and the radiating element are formed on a same substrate.
H04B 1/18 - Circuits d'entrée, p. ex. pour le couplage à une antenne ou à une ligne de transmission
H03F 3/19 - Amplificateurs à haute fréquence, p. ex. amplificateurs radiofréquence comportant uniquement des dispositifs à semi-conducteurs
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
A radar system includes: a plurality of first receiving devices for generating a plurality of first digital signals according to a plurality of first incoming signals, respectively; and a plurality of second receiving devices for generating a plurality of second digital signals according to a plurality of second incoming signals, respectively. A processing device is arranged to perform a first beamforming operation to generate a plurality of first beamforming signals according to the plurality of first digital signals and a first gain matrix, and to perform a second beamforming operation to generate a plurality of second beamforming signals according to the plurality of second digital signals and a second gain matrix; and to determine an altitude angle of a first object and a second object, and to determine a first azimuth angle of the first object and a second azimuth angle of the second object.
H03L 7/18 - Synthèse de fréquence indirecte, c.-à-d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
H03K 23/66 - Compteurs d'impulsions comportant des chaînes de comptageDiviseurs de fréquence comportant des chaînes de comptage avec une base ou racine différente d'une puissance de deux avec une base de comptage variable, p. ex. par pré-réglage ou par addition ou suppression d'impulsions
H03L 7/24 - Commande automatique de fréquence ou de phaseSynchronisation utilisant un signal de référence directement appliqué au générateur
H03L 7/00 - Commande automatique de fréquence ou de phaseSynchronisation
H04L 7/00 - Dispositions pour synchroniser le récepteur avec l'émetteur
H03K 21/00 - Détails de compteurs d'impulsions ou de diviseurs de fréquence
G01S 7/02 - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe
G01S 7/295 - Moyens pour transformer des coordonnées ou pour évaluer des données, p. ex. en utilisant des calculateurs
G01S 13/34 - Systèmes pour mesurer la distance uniquement utilisant la transmission d'ondes continues, soit modulées en amplitude, en fréquence ou en phase, soit non modulées utilisant la transmission d'ondes continues modulées en fréquence, tout en faisant un hétérodynage du signal reçu, ou d’un signal dérivé, avec un signal généré localement, associé au signal transmis simultanément
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
35.
Signal distribution system, and related phased array radar system
A signal distribution system includes: a first signal divider arranged to generate a first output oscillating signal according to a first input oscillating signal; a second signal divider arranged to generate a second output oscillating signal according to the first input oscillating signal; a first transmitting channel coupled to the first signal divider and the second divider for transmitting the first input oscillating signal to the first signal divider and the second signal divider; and a second transmitting channel coupled to the first signal divider and the second divider for transmitting a second input oscillating signal to the first signal divider and the second signal divider; wherein the first input oscillating signal has a first frequency, the second input oscillating signal has a second frequency, and the second frequency is smaller than the first frequency.
H03L 7/18 - Synthèse de fréquence indirecte, c.-à-d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
H03K 23/66 - Compteurs d'impulsions comportant des chaînes de comptageDiviseurs de fréquence comportant des chaînes de comptage avec une base ou racine différente d'une puissance de deux avec une base de comptage variable, p. ex. par pré-réglage ou par addition ou suppression d'impulsions
H03L 7/24 - Commande automatique de fréquence ou de phaseSynchronisation utilisant un signal de référence directement appliqué au générateur
G01S 7/02 - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe
G01S 7/295 - Moyens pour transformer des coordonnées ou pour évaluer des données, p. ex. en utilisant des calculateurs
G01S 13/34 - Systèmes pour mesurer la distance uniquement utilisant la transmission d'ondes continues, soit modulées en amplitude, en fréquence ou en phase, soit non modulées utilisant la transmission d'ondes continues modulées en fréquence, tout en faisant un hétérodynage du signal reçu, ou d’un signal dérivé, avec un signal généré localement, associé au signal transmis simultanément
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
36.
Near-field testing apparatus for testing antenna array and related method
A near-field testing apparatus for testing a device under test having an array of transmitter antennas is provided. The near-field testing apparatus includes a frame structure and a receiver circuit. The frame structure defines an array of grid sections, and is arranged for receiving the array of transmitter antennas at a first side of the array of grid sections. A periphery of each grid section at the first side surrounds a plurality of transmitter antennas in the array of transmitter antennas. The grid section is arranged to guide respective electromagnetic signals emitted by the transmitter antennas from the first side to a second side of the array of grid sections. The receiver circuit, disposed at the second side of the array of grid sections, is arranged to couple the electromagnetic signals out of the grid section.
H01Q 3/26 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante
A signal converting apparatus includes a comparing device, a first digital-slope quantizer, and a second digital-slope quantizer. The comparing device having a first input terminal and a second input terminal for receiving a first received signal and a second received signal, and for generating an output signal at an output port. The first digital-slope quantizer generates a first set of digital signals to monotonically adjust the first received signal and the second received signal at the first input terminal and the second input terminal during a first phase according to a first quantization unit. The second digital-slope quantizer generates a second set of digital signals to monotonically adjust the first received signal and the second received signal at the first input terminal and the second input terminal during a second phase after the first phase according to a second quantization unit.
A signal converting apparatus includes a comparing device, a first digital-slope quantizer, and a second digital-slope quantizer. The comparing device has a first input terminal and a second input terminal for receiving a received signal and an adjustable reference voltage respectively, and for generating an output signal at an output port. The first digital-slope quantizer is coupled to the output port and the second input terminal for generating a first set of digital signals to monotonically adjust the adjustable reference voltage at the second input terminal during a first phase according to a first quantization unit. The second digital-slope quantizer is coupled to the output port and the second input terminal for generating a second set of digital signals to monotonically adjust the adjustable reference voltage at the second input terminal during a second phase after the first phase according to a second quantization unit.
A radar system includes: a processing device arranged to generate a plurality of phase shifting digital signals; a plurality of transmitting devices for generating an RF beam according to the plurality of phase shifting digital signals during a first mode; a plurality of first receiving devices for generating a plurality of first digital signals according to a plurality of first incoming signals, respectively, during a second mode; and a plurality of second receiving devices for generating a plurality of second digital signals according to a plurality of second incoming signals, respectively, during the second mode. The processing device is further arranged to distinguish a first object and a second object when the RF beam hits the first object and the second object, and the first object and the second object have a same radial speed and are located at a same range.
H03L 7/18 - Synthèse de fréquence indirecte, c.-à-d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
H03K 23/66 - Compteurs d'impulsions comportant des chaînes de comptageDiviseurs de fréquence comportant des chaînes de comptage avec une base ou racine différente d'une puissance de deux avec une base de comptage variable, p. ex. par pré-réglage ou par addition ou suppression d'impulsions
H03L 7/24 - Commande automatique de fréquence ou de phaseSynchronisation utilisant un signal de référence directement appliqué au générateur
G01S 7/02 - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe
G01S 7/295 - Moyens pour transformer des coordonnées ou pour évaluer des données, p. ex. en utilisant des calculateurs
G01S 13/34 - Systèmes pour mesurer la distance uniquement utilisant la transmission d'ondes continues, soit modulées en amplitude, en fréquence ou en phase, soit non modulées utilisant la transmission d'ondes continues modulées en fréquence, tout en faisant un hétérodynage du signal reçu, ou d’un signal dérivé, avec un signal généré localement, associé au signal transmis simultanément
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
41.
Signal divider, signal distribution system, and method thereof
A signal divider includes: a dividing circuit arranged to generate an output oscillating signal according to a first input oscillating signal; and a signal generating circuit, coupled to the dividing circuit, for generating an injection signal to the dividing circuit. The dividing circuit is arranged to generate the output oscillating signal with a predetermined phase according to the injection signal and the first input oscillating signal.
H03L 7/18 - Synthèse de fréquence indirecte, c.-à-d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
H03K 23/66 - Compteurs d'impulsions comportant des chaînes de comptageDiviseurs de fréquence comportant des chaînes de comptage avec une base ou racine différente d'une puissance de deux avec une base de comptage variable, p. ex. par pré-réglage ou par addition ou suppression d'impulsions
H03L 7/24 - Commande automatique de fréquence ou de phaseSynchronisation utilisant un signal de référence directement appliqué au générateur
G01S 7/02 - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe
G01S 7/295 - Moyens pour transformer des coordonnées ou pour évaluer des données, p. ex. en utilisant des calculateurs
G01S 13/34 - Systèmes pour mesurer la distance uniquement utilisant la transmission d'ondes continues, soit modulées en amplitude, en fréquence ou en phase, soit non modulées utilisant la transmission d'ondes continues modulées en fréquence, tout en faisant un hétérodynage du signal reçu, ou d’un signal dérivé, avec un signal généré localement, associé au signal transmis simultanément
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
