The present invention relates to the field of wireless telecommunication and discloses a compact, high-performance, dual-polarized, quasi-omnidirectional Multiple-Input Multiple-Output (MIMO) antenna system for small cell wireless communications. It develops a flexible platform to realize different arrangements of antenna modules for different applications for 3G, 4G, and 5G wireless systems. It includes multi-band dual-polarized antenna arrays operating at 696 MHz-960 MHz, 1695 MHz-2700 MHz, 3300 MHz-4200 MHZ, 5150 MHz-5925 MHz, high gain antenna array modules, feeding networks, power dividers, reflectors, and a radome. The invention adopts a dual-polarized MIMO antenna structure with multiple radiating antenna arrays with high isolation between radiating elements to achieve compact size, good standing wave ratio, high gain, wide operating frequency range, quasi-omnidirectional antenna pattern, and spatial diversity with less interference. In addition, the antenna structure is fully customizable, highly reliable and durable, easy to manufacture, and easy to deploy in the field.
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 9/16 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
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
An antenna comprising the primary and secondary radiation structures and impedance-matching circuit are disposed in a collinear configuration with single port. The impedance-matching circuit can expand the antenna bandwidth in plural frequency bands with low VSWR. The transmission line between the RF connector and radiation structures are frictional wrapped by ferrite toroid cores, which improves the antenna in term of electrical stability. This also decreases the antenna sensitivity to the ground plane.
H01Q 5/15 - Resonant antennas for operation of centre-fed antennas comprising one or more collinear, substantially straight or elongated active elements
H01Q 1/42 - Housings not intimately mechanically associated with radiating elements, e.g. radome
H01Q 5/30 - Arrangements for providing operation on different wavebands
An active GNSS splitter module is integrated into a GNSS and WIFI combination antenna to provide four equal GNSS outputs. Different components of this antenna have been optimally placed in the limited available space under a low-profile radome to minimize the mutual effects on the radiation pattern of the antennas. The special compact design of the splitter board allows it to be effectively shielded to mitigate the unintended couplings between the GNSS antenna and the splitter itself. The splitter has an internal amplifier to compensate for the loss of split and output cables. All GNSS output ports are DC pass and therefore the required DC power for the GNSS antenna can be supplied through any of these ports. The splitter is equipped with a DC select circuit which monitors all DC inputs and selects one of them to power the GNSS antenna and splitter itself.
An active GNSS splitter module is integrated into a GNSS and WIFI combination antenna to provide four equal GNSS outputs. Different components of this antenna have been optimally placed in the limited available space under a low-profile radome to minimize the mutual effects on the radiation pattern of the antennas. The special compact design of the splitter board allows it to be effectively shielded to mitigate the unintended couplings between the GNSS antenna and the splitter itself. The splitter has an internal amplifier to compensate for the loss of split and output cables. All GNSS output ports are DC pass and therefore the required DC power for the GNSS antenna can be supplied through any of these ports. The splitter is equipped with a DC select circuit which monitors all DC inputs and selects one of them to power the GNSS antenna and splitter itself.
An antenna comprising the primary and secondary radiation structures and impedance-matching circuit are disposed in a collinear configuration with single port. The impedance- matching circuit can expand the antenna bandwidth in plural frequency bands with low VSWR. The transmission line between the RF connector and radiation structures are frictional wrapped by ferrite toroid cores, which improves the antenna in term of electrical stability. This also decreases the antenna sensitivity to the ground plane.
H01Q 5/25 - Ultra-wideband [UWB] systems, e.g. multiple resonance systemsPulse systems
H01Q 5/15 - Resonant antennas for operation of centre-fed antennas comprising one or more collinear, substantially straight or elongated active elements
H01Q 5/50 - Feeding or matching arrangements for broad-band or multi-band operation
H01Q 21/30 - Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
6.
Self-Tuning Resonant Cavity RF Transmitter Combiner with Extended Tuning Frequency Range
A self-tuning, resonant cavity transmitter combiner joins multiple RF transmitters and combines their signals onto a single transmission line. An additional tuning element is added to the junction of the signal paths to overcome the bandwidth limitations of the transmission lines joining the signal paths. An algorithm was developed to optimize the RF performance of the combiner by sampling the RF signals at various points in the RF circuit.
H01P 5/18 - Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
A self-tuning, resonant cavity transmitter combiner joins multiple RF transmitters and combines their signals onto a single transmission line. An additional tuning element is added to the junction of the signal paths to overcome the bandwidth limitations of the transmission lines joining the signal paths. An algorithm was developed to optimize the RF performance of the combiner by sampling the RF signals at various points in the RF circuit.
H03H 7/46 - Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
H03J 1/04 - Indicating arrangements with optical indicating means
H03J 1/06 - Driving or adjusting arrangementsDetails of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general combined with other driving or adjusting arrangements, e.g. of gain control
H03J 3/28 - Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
H03J 7/18 - Automatic scanning over a band of frequencies
An antenna for use in a distributed antenna system includes: (a) a feeding circuit on a first side of a first dielectric defining a planar edge perpendicular to the first side, a coplanar waveguide comprising a signal feed and a signal return coplanar with and interfittingly apart from the signal feed; (b) a radiator circuit on a second side of a second dielectric, a monopole radiator and a radiator return being copolanar and spaced apart from each other, the first dielectric capacitively coupling the signal feed to the monopole radiator; and (c) an edge connection along the planar edge for electrically connecting the signal return to the radiator return. A cover encloses the feeding circuit, including its impedance matching, in a water-resistant enclosure. The antenna ceiling-mounts indoors, is coated with a fire-resistant coating, and is operable at VHF (132-174 MHz), UHF (350-520 MHz), and 698-960 MHz.
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 1/00 - Details of, or arrangements associated with, antennas
H01Q 5/20 - Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
An antenna for use in a distributed antenna system is provided. The antenna includes: (a) a feeding circuit on a first side of a first dielectric defining an edge perpendicular to the first side, a coplanar waveguide comprising a signal feed and a signal return coplanar with and interfittedly apart from the signal feed; (b) a radiator circuit on a second side of a second dielectric, a monopole radiator and a radiator return being copolanar and spaced apart from each other, the first dielectric capacitively coupling the signal feed to the monopole radiator; and (c) an edge connection along the edge for electrically connecting the signal return to the radiator return. A cover encloses the feeding circuit, including its impedance matching, in a water-resistant enclosure. The antenna ceiling-mounts indoors, is coated with a fire-resistant coating, and is operable at VHF (132-174 MHz), UHF (350-520 MHz), and 698-960 MHz.
H01Q 9/40 - Element having extended radiating surface
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
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
Disclosed in the present invention is an antenna array. The antenna array comprises a controller and a plurality of antenna units. The antenna units are arranged to form at least (n-1) surfaces of an n-hedron, n being an integer greater than or equal to 4; each of the at least (n-1) surfaces is provided with at least two antenna units; the distance between the adjacent antenna units on the same surface is smaller than a wavelength corresponding to a center frequency of the antenna units; the controller is connected to each antenna unit; the controller is used for controlling on/off and a phase of each antenna unit.
H01Q 3/34 - 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 relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements 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 distribution of energy across a radiating aperture varying the phase by electrical means
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
A cavity filter (100). In the cavity filter (100), an input end (30) runs through a cavity (10) to connect to a first resonator (21), and an output end (40) runs through the cavity (10) to connect to a fourth resonator (24), so as to provide electromagnetic excitation; two adjacent resonators in a plurality of resonators (21, 22, 23, 24, 25, 26) are coupled by a window, the first resonator (21) and the second resonator (22) are further coupled by a first coupling line (51), and the fourth resonator (24) and the third resonator (23) are further coupled by a second coupling line (52), such that the plurality of resonators (21, 22, 23, 24, 25, 26) produce a passband under electromagnetic excitation. The cavity filter (100) can realize a wide passband and has the advantage of miniaturization.
The present invention provides a balanced dipole unit and a broadband omnidirectional collinear array antenna formed by the balanced dipole unit. Balanced dipole unit circuits in the balanced dipole unit are symmetrically distributed on two sides of a circuit carrier, and a feeder and a ground wire in the balanced dipole unit are also symmetrically distributed, so that the balanced dipole unit has a completely symmetrical structure. A principle of the symmetrical structure is the same as a differential design principle and a self-balancing principle in the circuit design, thereby reducing current coupling between the balanced dipole units and eliminating the need of using an additional choke circuit when a broadband omnidirectional collinear array antenna is formed by the balanced dipole unit.
H01Q 5/15 - Resonant antennas for operation of centre-fed antennas comprising one or more collinear, substantially straight or elongated active elements
H01Q 9/16 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
H01Q 21/20 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a curvilinear path
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
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
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
13.
Collinear antenna assembly and series-fed omnidirectional collinear antenna array
A collinear antenna assembly and a series-fed omnidirectional collinear antenna array are provided. The collinear antenna assembly includes a plurality of phase delayers connected in series, and an end portion of each phase delayer is connected to an antenna radiating unit; the phase delayer includes a circuit wire printed on a dielectric plate, two ends of the circuit wire are connected to the antenna radiating unit, a wire length, a wire width and a wire spacing of the circuit wire are set based on preset wiring rules, the wire lengths, the wire widths and the wire spacing of the circuit wires of the phase delayers set based on different preset wiring rules are different, so that a phase and an amplitude fed to each antenna radiating unit are accurately controlled.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Wireless communications products, namely, base station and mobile antennas, receiver multicouplers, duplexers, transmitter combiners, bi-bandpass, reject and Q-circuit filters, circulators and isolators; power supplies and power monitoring equipment, namely, modular power and VSWR (voltage storage wave ratio) monitors with alarms activated by power outputs below or in excess of predetermined thresholds for measuring power output characteristics of radio frequency equipment; communications equipment shelters, namely, fiberglass shelters to enclose commercial equipment to protect such equipment from the elements.
09 - Scientific and electric apparatus and instruments
19 - Non-metallic building materials
Goods & Services
wireless communications products, namely, base station and mobile antennas, receiver multicouplers, duplexers, transmitter combiners, bi-bandpass, reject and Q-circuit filters, circulators and isolators; power supplies and power monitoring equipment, namely, modular power and VSWR (voltage storage wave ratio) monitors with alarms activated by power outputs below or in excess of predetermined thresholds for measuring power output characteristics of radio frequency equipment communications equipment shelters, namely, fiberglass shelters to enclose commercial equipment to protect such equipment from the elements
09 - Scientific and electric apparatus and instruments
19 - Non-metallic building materials
Goods & Services
wireless communications products, namely, base station and mobile antennas; receiver multicouplers; duplexers; transmitter combiners; bi-bandpass, reject and Q-circuit filters; circulators and isolators; power supplies and power monitoring equipment, namely, modular power and VSWR (voltage storage wave ratio) monitors with alarms activated by power outputs below or in excess of predetermined thresholds for measuring power output characteristics of radio frequency equipment communications equipment shelters, namely, fiberglass shelters to enclose commercial equipment to protect such equipment from the elements
09 - Scientific and electric apparatus and instruments
19 - Non-metallic building materials
Goods & Services
(1) Communications products, namely base station and mobile antennas; receiver multicouplers; duplexers; transmitter combiners; bi-bandpass, reject and Q-circuit filters; circulators and isolators, power supplies and power monitoring equipment, and communications equipment shelters.
09 - Scientific and electric apparatus and instruments
19 - Non-metallic building materials
Goods & Services
(1) Communications products, namely base station and mobile antennas; receiver multicouplers; duplexers; transmitter combiners; bi-bandpass, reject and Q-circuit filters; circulators and isolators, power supplies and power monitoring equipment, and communications equipment shelters.
09 - Scientific and electric apparatus and instruments
19 - Non-metallic building materials
Goods & Services
(1) Communications products, namely base station and mobile antennas; receiver multicouplers; duplexers; transmitter combiners; bi-bandpass, reject and Q-circuit filters; circulators and isolators, power supplies and power monitoring and communications equipment shelters.
