There are disclosed antenna arrays for portable electronic devices. In one aspect, the antenna array comprises at least two antennas, each antenna comprising at least two radiating elements; and at least two control networks each comprising a plurality of impedance matching circuits and RF switches, each antenna being connected to a respective control network. Each control network connects the radiating elements of its respective antenna to a single RF port. Each antenna element is connected to a respective first RF switch in its respective control network allowing selection between different ones of the plurality of impedance matching circuits. Each port is connected to a respective second RF switch in its respective control network allowing selection between different ones of the plurality of impedance matching circuits. The impedance matching circuits are connected between the first RF switches and the second RF switch in each control network. In another aspect, the antenna array comprises a plurality of leaky-wave antennas; a plurality of control networks each comprising a plurality of impedance matching circuits and RF switches, each leaky-wave antenna being connected to a respective control network; and a digital control processor configured to send control signals to the control networks so as to control operation of the leaky-wave antennas. Each control network connects its respective leaky-wave antenna to a single RF port.
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H01Q 3/24 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
H01Q 13/20 - Non-resonant leaky-waveguide or transmission-line antennas Equivalent structures causing radiation along the transmission path of a guided wave
There is disclosed an antenna arrangement for a portable electronic device. The antenna arrangement comprises a conductive ground plane having an edge and a substantially rectangular recess formed in the edge of the ground plane. The recess has a base, an open edge opposed to the base, and at least a first side extending from the base. A first conductor element extends across the open edge of the recess, a first end of the first conductor element being connected to the ground plane at the first side of the recess. The first conductor element leaves at least one gap at the edge of the recess, such that the first conductor element, the first side of the recess and the base of the recess together define a slot in the ground plane and the at least one gap defines at least one notch in the slot. A second conductor element is disposed within the recess and connected to or configured to couple with the ground plane. The antenna arrangement further comprises a feed arm for connection to an RF feed, the feed arm being disposed substantially within a footprint of the slot.
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
There is disclosed an antenna module for a portable electronic device.The antenna module comprises a substantially planar dielectric substrate having first and second opposed surfaces, and first and second opposed edges. A feed arm comprising a conductive track is disposed on the substrate, the feed arm having a first part extending from the first edge of the substrate towards the second edge of the substrate, and a second part extending substantially laterally from the first part. At least first and second radiating elements are also provided, each radiating element comprising a conductive track disposed on the substrate, each radiating element having a first part extending from the second edge of the substrate towards the first edge, and a second part extending substantially laterally from the first part.Ends of the first parts of the at least first and second radiating elements at the second edge of the substrate are configured for connection to a ground plane.
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
There is disclosed a reconfigurable, leaky-wave antenna device comprising: a groundplane; a septum extending substantially perpendicularly from the groundplane and extending along a length thereof; a first main microstrip transmission line having first and second opposed lengthwise edges, the first edge connected to the septum, the first main microstrip transmission line extending substantially parallel to and above the groundplane to one side of the septum; and a first subsidiary microstrip transmission line, arranged alongside the second edge of the first main microstrip transmission line. The first main and first subsidiary microstrip transmission lines are connected to each other at a plurality of points along their respective lengths by reconfigurable electronic components.
H01Q 13/20 - Non-resonant leaky-waveguide or transmission-line antennas Equivalent structures causing radiation along the transmission path of a guided wave
H01Q 13/28 - Non-resonant leaky-waveguide or transmission-line antennas Equivalent structures causing radiation along the transmission path of a guided wave comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements or conductive elements forming artificial dielectric
H01Q 21/24 - Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
H01Q 21/30 - Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
H01Q 25/00 - Antennas or antenna systems providing at least two radiating patterns
5.
BEAM SWITCHING USING COMMON AND DIFFERENTIAL MODES
There is disclosed an antenna arrangement comprising at least first and second radiating elements, each provided with an associated RF switch. The associated RF switches are operable so as selectively to connect either the first or the second radiating element individually to an RF port such that the first or the second radiating element respectively operates in an unbalanced mode, or to connect the first and second radiating elements together to the RF port such that the first and second radiating elements operate together in a balanced mode. The first and second radiating elements are electrically connected to each other by a link connection when either the first radiating element or the second radiating element is operating in the unbalanced mode.
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 3/24 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
There is disclosed an antenna arrangement for a portable electronic device. The antenna arrangement comprises a conductive ground plane having an edge anda substantially rectangular recess formed in the edge of the ground plane. The recess hasa base, an open edge opposed to the base, and at least a first side extending from the base. Afirst conductor element extendsacross the open edge of the recess, a first end of the first conductor element being connected to the ground plane at the first side of the recess. The firstconductor element leavesat least one gap at the edgeof the recess, such that the first conductor element, the first side of the recess and the base of the recess together define a slot in the ground plane and the at least one gap defines at least one notch in the slot. A secondconductor element is disposed within the recess and connected to or configured to couple with the ground plane. The antenna arrangement further comprises afeed arm for connection to an RF feed, the feed arm being disposed substantially within a footprint of the slot.
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
There are disclosed antenna arrays for portable electronic devices. In one aspect, the antenna array comprises at least two antennas, each antenna comprising at least two radiating elements;and at least two control networks each comprising a plurality of impedance matching circuits and RF switches, each antenna being connected to a respective control network. Each control network connects the radiating elements of its respective antenna to a single RF port. Each antenna element is connected to a respective first RF switch in its respective control network allowing selection between different ones of the plurality of impedance matching circuits. Each port is connected to a respective second RF switch in its respective control network allowing selection between different ones of the plurality of impedance matching circuits. The impedance matching circuits are connected between the first RF switches and the second RF switch in each control network. In another aspect, the antenna array comprises a plurality of leaky-wave antennas; a plurality of control networks each comprising a plurality of impedance matching circuits and RF switches, each leaky-wave antenna being connected to a respective control network; and a digital control processor configured to send control signals to the control networks so as to control operation of the leaky-wave antennas. Each control network connects its respective leaky- wave antenna to a single RF port.
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 3/24 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
H01Q 13/20 - Non-resonant leaky-waveguide or transmission-line antennas Equivalent structures causing radiation along the transmission path of a guided wave
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
8.
Reconfigurable 4-port multi-band multi-function antenna with a grounded dipole antenna component
There is disclosed a reconfigurable antenna device comprising a substrate having first and second opposed ends and first and second opposed side edges, the substrate incorporating a main groundplane. The antenna device further comprises a dipole antenna having first and second arms each having a proximal portion and a distal portion, the proximal portions extending substantially adjacent and parallel to the first end of the substrate and the distal portions respectively extending substantially adjacent and parallel to the first and second side edges of the substrate. Distal ends of the first and second arms are connected to the main groundplane or otherwise grounded. Additionally, there is provided a main chassis antenna having first and second arms extending substantially adjacent and parallel to the first end of the substrate. The main chassis antenna is configured for excitation by RF currents in the main groundplane. Finally, there are provided first and second auxiliary chassis antennas, the first auxiliary chassis antenna being disposed at the first end of the substrate substantially adjacent to the proximal portion of first arm of the dipole antenna and the first arm of the main chassis antenna, and the second auxiliary chassis antenna being disposed at the first end of the substrate substantially adjacent to the proximal portion of the second arm of the dipole antenna and the second arm of the main chassis antenna. The first and second auxiliary chassis antennas are configured for excitation by RF currents in the main groundplane.
H04M 1/00 - Substation equipment, e.g. for use by subscribers
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
H01Q 5/50 - Feeding or matching arrangements for broad-band or multi-band operation
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 9/26 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
H01Q 9/40 - Element having extended radiating surface
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
There is disclosed an antenna system comprising: i) first and second antennas, the second antenna being disposed laterally from the first along a longitudinal axis, and ii) an isolation structure disposed between the first and second antennas. The isolation structure comprises a first resonator element having a first arm with upper and lower ends, the first arm connected to ground at its lower end, and a lateral second arm connected to the upper end of the first arm. At least a portion of the first resonator element is disposed adjacent to a portion of the first antenna such that the first resonator element is strongly coupled to the first antenna.
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H01Q 5/328 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
10.
Reconfigurable multi-band antenna with independent control
There is disclosed a multi-band reconfigurable antenna device having at least one radiating element. The radiating element is connected to a single port by way of at least first and second matching circuits arranged in parallel. A high pass filter is provided between the first matching circuit and the radiating element so as to allow passage of a first, higher frequency RF signal through the first matching circuit. A low pass filter is provided between the second matching circuit and the at least one radiating element so as to allow passage of a second, lower frequency RF signal through the second matching circuit. The high pass filter blocks passage of the second, lower frequency RF signal through the first matching circuit, and the low pass filter blocks passage of the first, higher frequency RF signal through the second matching circuit. The first and second matching circuits are adjustable independently of each other so as to allow the first and second RF signals to be tuned independently of each other.
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
H01P 1/213 - Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
There is disclosed a reconfigurable antenna device having a substrate incorporating a first groundplane, a two-arm antenna having first and second arms each having a proximal portion and a distal portion, a first unbalanced antenna located generally between the distal portions and adjacent to the proximal portions of the first and second arms, a second unbalanced antenna located generally adjacent to the first arm and a third unbalanced antenna located generally adjacent to the second arm. The antenna device may be configured with four or five feed points, and may drive from four up to ten signal ports.
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 9/20 - Two collinear substantially straight active elementsSubstantially straight single active elements
H01Q 9/40 - Element having extended radiating surface
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
There is disclosed an antenna system suitable for incorporation between the hinges joining a lid portion and a keyboard portion of a laptop computer. The antenna system is disposed on an elongate dielectric substrate having a longitudinal axis with first and second opposed ends and a predetermined reference point therebetween. The antenna system comprises a compound antenna structure disposed substantially laterally symmetrically about the reference point on the substrate, the compound antenna structure comprising at least a first unbalanced antenna with a first feed and a further antenna with a second feed; and first and second additional unbalanced antennas disposed substantially laterally symmetrically about the compound antenna structure on the longitudinal axis of the substrate, each of the first and second additional unbalanced antennas having a respective feed.
H01Q 9/26 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
H01Q 9/28 - Conical, cylindrical, cage, strip, gauze or like elements having an extended radiating surface Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
13.
RECONFIGURABLE 4-PORT MULTI-BAND MULTI-FUNCTION ANTENNA WITH A GROUNDED DIPOLE ANTENNA COMPONENT
There is disclosed a reconfigurable antenna device comprising a substrate having first and second opposed ends and first and second opposed side edges, the substrate incorporating a main groundplane. The antenna device further comprises a dipole antenna having first and second arms each having a proximal portion and a distal portion, the proximal portions extending substantially adjacent and parallel to the first end of the substrate and the distal portions respectively extending substantially adjacent and parallel to the first and second side edges of the substrate. Distal ends of the first and second arms are connected to the main groundplane or otherwise grounded. Additionally, there is provided a main chassis antenna having first and second arms extending substantially adjacent and parallel to the first end of the substrate. The main chassis antenna is configured for excitation by RF currents in the main groundplane. Finally, there are provided first and second auxiliary chassis antennas, the first auxiliary chassis antenna being disposed at the first end of the substrate substantially adjacent to the proximal portion of first arm of the dipole antenna and the first arm of the main chassis antenna, and the second auxiliary chassis antenna being disposed at the first end of the substrate substantially adjacent to the proximal portion of the second arm of the dipole antenna and the second arm of the main chassis antenna. The first and second auxiliary chassis antennas are configured for excitation by RF currents in the main groundplane.
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
H01Q 5/50 - Feeding or matching arrangements for broad-band or multi-band operation
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 9/26 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
H01Q 9/40 - Element having extended radiating surface
14.
MULTI-BAND ANTENNA IMPEDANCE MATCHING USING NEGATIVE IMPEDANCE CONVERTERS
There is disclosed an active impedance matching network for an electrically-small antenna. The network comprises a plurality of electrically-parallel branches connected between a transceiver and the antenna. At least one branch comprises a pre-matching transformer, a negative impedance converter and a post-matching network connected in series with each other. There is also disclosed a matching network for connecting an electrically small antenna to an RF source or load. The matching network comprises a negative impedance converter, a pre-matching network for connecting the negative impedance converter to the antenna and a post-matching network for connecting the negative impedance converter to the RF source or load. The post-matching network comprises a plurality of parallel branches between the negative impedance converter and the RF source or load. Each branch includes a separate post-matching impedance transforming circuit, and each branch is configured to carry a different frequency band.
There is disclosed a negative impedance converter for a matching circuit for matching an impedance of an antenna to an impedance of an RF source or load. The negative impedance converter comprises first and second transistors connected in a cross-over configuration. Each transistor has a source or emitter, a drain or collector and a gate or base, and each transistor further has a first biasing circuit connected to its gate or base. The first biasing circuit comprises a first DC biasing signal source and a first diode or a third transistor connected between the first DC biasing signal source and the gate or base. There is also disclosed a negative impedance converter for a matching circuit for matching an impedance of an antenna to an impedance of an RF source or load. The negative impedance converter comprises first and second transistors connected in a cross-over configuration, each transistor having a source or emitter, a drain or collector and a gate or base. The source or emitter of one transistor is configured as an RF input port and the source or emitter of the other transistor is configured as an RF output port. The drain or collector of the first transistor is connected to the gate or base of the second transistor and the drain or collector of the second transistor is connected to the gate or base of the first transistor. An impedance is connected between the drain or collector of the first transistor and the drain or collector of the second transistor. The negative impedance converter is further provided with a passive impedance adjustment network connected between the source or emitter of the first transistor and the source or emitter of the second transistor.
There is disclosed a matching network for connecting an electrically small antenna to an RF source or load. The matching network includes a negative impedance converter, a pre-matching network for connecting the negative impedance converter to the antenna and a post-matching network for connecting the negative impedance converter to the RF source or load. The pre-matching network comprises a combination of capacitors and/or inductors to transform both a real part and an imaginary part of an impedance of the antenna. The negative impedance converter is configured to cancel the transformed imaginary part of the impedance of the antenna. The post-matching network comprises a combination of capacitors and/or inductors to transform a residual real part of the impedance of the antenna to match an impedance of the RF source or load. There is also disclosed an antenna system comprising a plurality of antenna radiating elements each having an associated feed, at least one of the feeds being connected to an RF source or load by way of an active matching circuit comprising a pre-matching network, a negative impedance converter and a post-matching network.
There is disclosed a reconfigurable antenna device comprising a substrate incorporating a groundplane, a chassis antenna mounted at an end of the groundplane and configured to excite first radiating modes in the groundplane, and a balanced loop antenna mounted at the end of the groundplane adjacent to the chassis antenna and configured to excite second radiating modes, wherein the first and second radiating modes are substantially orthogonal to each other. An active coaxial feed may be integrated into one side of the balanced loop antenna, and a dummy coaxial feed may be integrated into the other side of the balanced loop antenna so as to preserve the symmetry of the balanced loop antenna.
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
H01Q 5/50 - Feeding or matching arrangements for broad-band or multi-band operation
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 9/40 - Element having extended radiating surface
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
09 - Scientific and electric apparatus and instruments
Goods & Services
Antennas and driving circuits thereof, being components of: smartphones, tablet computers, laptop computers, wireless peripherals, access points, base stations or other wireless connected devices; all being sold or licensed to the manufacturers of such devices
19.
ANTENNA IMPEDANCE MATCHING WITH NEGATIVE IMPEDANCE CONVERTERS
There is disclosed an active impedance matching network for an electrically-small antenna (5). The network may comprise a plurality of negative impedance converters (1, 2, 3, 4) individually connectable with switches (100, 101, 102, 103, 103, 200, 201, 202, 203, 400) between a transceiver (6) and the antenna (5), with the negative impedance converters (1, 2, 3, 4) being respectively configured for optimum performance at respective different power outputs of the transceiver. Alternatively, the network may comprise a negative impedance converter connectable between a transceiver and the antenna, the negative impedance converter having a bias voltage connection, and the negative impedance converter being adjustable for different power outputs of the transceiver by applying different bias voltages to the bias voltage connection.
H01Q 9/00 - Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
H01Q 23/00 - Antennas with active circuits or circuit elements integrated within them or attached to them
H03H 7/46 - Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
There is disclosed a multi-band reconfigurable antenna device having at least one radiating element. The radiating element is connected to a single port by way of at least first and second matching circuits arranged in parallel. A high pass filter is provided between the first matching circuit and the radiating element so as to allow passage of a first, higher frequency RF signal through the first matching circuit. A low pass filter is provided between the second matching circuit and the at least one radiating element so as to allow passage of a second, lower frequency RF signal through the second matching circuit. The high pass filter blocks passage of the second, lower frequency RF signal through the first matching circuit,and the low pass filter blocks passage of the first, higher frequency RF signal through the second matching circuit. The first and second matching circuits are adjustable independently of each other so as to allow the first and second RF signals to be tuned independently of each other.
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
There is disclosed a reconfigurable antenna device comprising a plurality of antennas disposed about a periphery of a substantially rectangular shape having top, bottom, left and right sides. The antenna device includes a first balanced antenna having first and second radiating arms each having a proximal portion and a distal portion, proximal portions extending along the top side in respectively opposed directions from a substantially central feed point, and the distal portions extending part way down the left and right sides. The antenna device further includes a first unbalanced antenna located generally between the distal portions and adjacent to the proximal portions of the first and second radiating arms. In addition, the antenna device includes a second balanced antenna having a first radiating arm extending up the left side from a feed peed point in a bottom left corner of the periphery and a second radiating arm extending along the bottom side from the feed point in the bottom left corner of the periphery, and a third balanced antenna having a first radiating arm extending up the right side from a feed point in a bottom right corner of the periphery and a second radiating arm extending along the bottom side from the feed point in the bottom right corner of the periphery.
There is disclosed a tuning control circuit configured for use with an antenna device having a signal port connected to a matching circuit. The matching circuit is connected to a transceiver. The matching circuit includes a tuneable component that can be adjusted so as to allow the signal port to be impedance matched to the transceiver. The tuning control circuit includes a monitor circuit connected across the matching circuit,the monitor circuit comprising an operational amplifier and an analogue/digital converter. The operational amplifier is configured to detect a potential difference representative of power loss across the matching circuit, and the analogue/digital converter is configured to output a digital signal representative of power loss across the matching circuit. The tuning control circuit further includes a digital controller connected to the analogue/digital converter and also to the matching circuit. The digital controller is configured to tune the matching circuit by adjusting the tuneable component in response to the detected power loss across the matching circuit so as to reduce the detected power loss.
There is disclosed a reconfigurable antenna device having a substrate incorporating a first groundplane, a two-arm antenna having first and second arms each having a proximal portion and a distal portion, a first unbalanced antenna located generally between the distal portions and adjacent to the proximal portions of the first and second arms, a second unbalanced antenna located generally adjacent to the first arm and a third unbalanced antenna located generally adjacent to the second arm. The antenna device may be configured with four or five feed points, and may drive from four up to ten signal ports.
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
H01Q 9/40 - Element having extended radiating surface
H01Q 9/16 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
H01Q 9/30 - Resonant antennas with feed to end of elongated active element, e.g. unipole
H01Q 9/20 - Two collinear substantially straight active elementsSubstantially straight single active elements
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
09 - Scientific and electric apparatus and instruments
Goods & Services
Signal amplifiers; Signal transmitters; Signal processors; Signal transmission apparatus; Digital signal processors; Radio signal antennas; Electrical signal attenuators; Transmitters of electronic signals; Receiving terminals for signals; Remote control of signals (Electro-dynamic apparatus for the -); Antenna parameter measuring apparatus; Antennas; Antennas for wireless communications apparatus; Antennas and aerials as components; Radio-frequency antennas; Frequency converters; Frequency convertors; Frequency transformers; Frequency modulators; Frequency modulation apparatus.
The present invention resides in a reconfigurable antenna. The antenna comprises a balanced antenna and an unbalanced antenna mounted on a supporting substrate, with both the balanced antenna and the unbalanced antenna located at the same end of the substrate. The antenna may be configured as a chassis antenna for use in a portable device or configured for Multiple-Input-Multiple-Output (MIMO) applications.
H01Q 9/16 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 9/26 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
G01N 33/487 - Physical analysis of biological material of liquid biological material
A reconfigurable antenna comprises two or more mutually coupled radiating elements and two or more impedance-matching circuits configured for independent tuning of the frequency band of each radiating element. In addition, each radiating element is arranged for selective operation in each of the following states: a driven state, a floating state and a ground state.
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 9/40 - Element having extended radiating surface
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
H01Q 5/40 - Imbricated or interleaved structuresCombined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
A reconfigurable multi-output antenna (16) is disclosed comprising: one or more radiating elements (12, 14), at least two matching circuits (42, 44, 50, 52) coupled to the or each radiating element (12, 14) via e.g. a splitter (30, 32) or a duplexer; and wherein each matching circuit (42, 44, 50, 52) is associated with a separate port (38, 40, 46, 48) arranged to drive a separate resonant frequency so that the or each radiating element (12, 14) is operable to provide multiple outputs simultaneously. The resonant frequency of each output is independently controllable by each matching circuit, with good isolation with each other port, thereby offering very wide operating frequency range with simultaneous multi-independent output operations. Also described is a multi-output antenna control module for coupling to one or more radiating elements, an antenna structure and an antenna interface module. A reconfigurable multi-output antenna is disclosed comprising: one or more radiating.
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
The invention relates to a balanced antenna system comprising a radiator connected via a matching circuit to a balun. In certain embodiments, the radiator comprises a first radiating element and a second radiating element and the matching circuit comprises a first impedance-matching circuit connected to the first radiating element and a second impedance-matching circuit connected to the second radiating element. The first and second matching circuits may be identical and are connected through the balun to a single port. To minimize the component count, the design of the matching circuit and balun is co-optimized.
H01Q 1/50 - Structural association of antennas with earthing switches, lead-in devices or lightning protectors
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 9/26 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
A reconfigurable antenna comprises two or more mutually coupled radiating elements and two or more impedance-matching circuits configured for independent tuning of the frequency band of each radiating element. In addition, each radiating element is arranged for selective operation in each of the following states: a driven state, a floating state and a ground state.
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 5/00 - Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
H01Q 9/40 - Element having extended radiating surface
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
