3864results about "Polarised antenna unit combinations" patented technology

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing phase adjusting for one or more radiating elements of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing polarization adjusting for one or more orthogonally-polarized element pairs of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing polarization adjusting by rotating one or more radiating elements of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Radiating elements comprise a first dipole radiator that includes a first dipole arm and a second dipole arm, a second dipole radiator that includes a third dipole arm and a fourth dipole arm and first through fourth electromagnetic bandgap structures that are coupled to distal end portions of the respective first through fourth dipole arms.

The present disclosure discloses a circularly polarized satellite antenna based on a magnetoelectric dipole. A floor is slotted, and an equivalent magnetoelectric dipole is excited using a grounded right-angle folded dipole, while two square parasitic patches are loaded to enhance a radiation performance, thus exciting a broadband high-gain circularly polarized radiation beam. The present disclosure utilizes the L-shaped right-angle folded dipole to simultaneously realize an ingenious combination of an electric dipole and a magnetic dipole, realizing a good circularly polarized radiation performance. At the same time, the present disclosure realizes circularly polarized radiation using a form of the magnetic dipole, which results in a stable pattern and a high gain.

Aspects of the subject disclosure may include, for example, identifying one or more radiating elements of an antenna system that are to be adjusted based on interference determined to affect an operation of the antenna system, and altering one or more properties of the one or more radiating elements to effect polarization adjusting such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing phase adjusting for one or more radiating elements of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

An antenna apparatus and an antenna system. The antenna apparatus is an antenna array composed of a plurality of micro-strip antenna units. Each micro-strip antenna unit comprises a dielectric substrate, a radiation patch, a metal base plate, a feed probe and a shorting pin, wherein the radiation patch is located on an upper surface of the dielectric substrate; the metal base plate is located on a lower surface of the dielectric substrate; the feed probe runs through the dielectric substrate to connect one end of the radiation patch to the metal base plate; and the shorting pin runs through the dielectric substrate to connect the other end of the radiation patch to the metal base plate. By configuring a shorting pin on a radiation patch and simultaneously exciting a first-order mode and a second-order mode, the radiation power of micro-strip antenna units in a preset region can be suppressed to generate a radiation null, such that signals radiated by the micro-strip antenna units can realize asymmetry, thereby realizing the asymmetry of an antenna array. By using an antenna system composed of the antenna array, the coupling suppression of a transceiving array of the antenna system can be realized, thereby improving the isolation degree of the transceiving array.

The invention discloses a liquid metal-based polarized reconfigurable radiation-scattering integrated antenna array, which is composed of four sub-arrays, each sub-array comprises a metasurface antenna layer, a metalized ground layer and a feed network layer, the metasurface antenna layer is formed by periodically arranging units and is placed on the upper surface of a first dielectric plate, and the metalized ground layer is arranged on the upper surface of the first dielectric plate. The antenna is mainly used for realizing circular polarization radiation and reducing a radar cross section. The feed network layer is mainly composed of Wilkinson power dividers and is placed on the lower surface of the second dielectric plate; and a metalized ground layer is arranged between the two dielectric plates. In the feed network layer, the signal transmission path of the feed network is changed by regulating the position of the liquid metal, so that the polarization reconfigurable function of the sub-array is realized; according to the invention, the reduced bandwidth of the radar cross section of the antenna array is expanded by arranging the sub-arrays at different heights. According to the invention, the liquid metal is adopted to control the feed network, the reconstruction of antenna polarization is realized, and the working bandwidth of radar scattering reduction is widened through the unequal-height placement of the sub-arrays.

Aspects of this disclosure relate to an antenna array. An antenna array may include a first circularly polarized dipole antenna that includes a first pair of conductive elements. The antenna array may include a second circularly polarized dipole antenna that includes a second pair conductive elements, the second pair of conductive elements being geometrically orthogonal to the first pair of conductive elements. The antenna array may include a beamformer integrated circuit configured to drive the second circularly polarized dipole antenna such that the second circularly polarized dipole antenna transmits a first radio frequency signal while the first circularly polarized dipole antenna receives a second radio frequency signal. The first radio frequency signal can have a different polarization and be in a different frequency band than the second radio frequency signal.

We generally describe an antenna system comprising a dual-polarized radiating element extending generally in a first direction parallel or substantially parallel to a reflector of the antenna system. The dual-polarized radiating element is configured to emit an electromagnetic wave. The antenna system further comprises a low-pass filter structure extending generally in a second direction perpendicular or substantially perpendicular to the reflector of the antenna system. The low-pass filter structure is spaced apart, in relation to the first direction, from a center portion of the dual-polarized radiating element. The antenna system further comprises a coupling feeding line which electrically couples, via a region which comprises an end portion of the dual-polarized radiating element, the low-pass filter structure with the center portion of the dual-polarized radiating element for feeding an electrical signal via the low-pass filter structure through the coupling feeding line to the center portion of the dual-polarized radiating element.

An antenna-in-module includes a ground plate, three radiating elements, and two feed stubs. A first radiating element and a ground plate are arranged at an interval along a Z-axis and are disposed opposite to each other. The first radiating element and a second radiating element are arranged at an interval along an X-axis. A first gap between the first radiating element and the second radiating element extends along a Y-axis. A third radiating element and the second radiating element are arranged at an interval along the Z-axis and are disposed opposite to each other. At least a part of a first feed stub is disposed in a first aperture that includes space between the first gap and the ground plate. At least a part of a second feed stub is disposed in a second aperture that includes space between the second radiating element and the third radiating element.

A box dipole radiating element uses a compact quad arrangement of substantially coplanar radiating arms to support slant-polarized radiation, in response to differential-mode currents generated along four sides thereof and in response to common-mode currents, which may be generated in substantially the same plane as the differential-mode currents. A feed signal routing network is provided, which includes a feed signal routing substrate on portions of the radiating arms, first through fourth signal traces on a forward face of the substrate, and first through fourth ground plane segments on a rear face of the substrate. These first through fourth ground plane segments are capacitively coupled to the radiating arms. Each of the signal traces receives a corresponding feed signal, and spans a corresponding air gap between a pair of the radiating arms.

Aspects of the subject disclosure may include, for example, receiving, via an antenna, a communication signal generated by a communication device, and detecting interference in the communication signal, wherein the interference is generated by one or more interference sources, wherein the interference is detected by monitoring a near field region of the antenna, an intermediate field region of the antenna, a far field region of the antenna, or any combinations thereof, wherein the monitoring excludes monitoring only the far field region of the antenna. Other embodiments are disclosed.

Competing tradeoffs of overall footprint, weight, and performance impact the design of antennas for many applications. However, those for compact portable devices or mobile platforms exploiting global navigation satellite systems these are further compounded by seeking good performance over a wide angular range. Accordingly, it would be beneficial to provide designers of a wide range of electrical devices and systems with compact broadband antennas which offer a low vertical profile relative to that provided by the common filar element approaches for high precision applications. Accordingly, through a combination of a dipole, a parasitic element, and additional ground elements to a convention ground plane the inventors provide broadband high performance antenna designs with low profile and low overall footprint.

According to one embodiment, a transmit / receive antenna module includes a radar circuit arranged at a substrate, a transmit antenna arranged at a first end portion of the substrate and connected to the radar circuit, a receive antenna arranged at a second end portion of the substrate and connected to the radar circuit. The transmit antenna is capable of transmitting an electromagnetic wave parallel to the substrate. The receive antenna is capable of receiving an electromagnetic wave parallel to the substrate.

Millimeter wave (mmWave) technology, apparatuses, and methods that relate to transceivers, receivers, and antenna structures for wireless communications are described. The various aspects include co-located millimeter wave (mmWave) and near-field communication (NFC) antennas, scalable phased array radio transceiver architecture (SPARTA), phased array distributed communication system with MIMO support and phase noise synchronization over a single coax cable, communicating RF signals over cable (RFoC) in a distributed phased array communication system, clock noise leakage reduction, IF-to-RF companion chip for backwards and forwards compatibility and modularity, on-package matching networks, 5G scalable receiver (Rx) architecture, among others.

Aspects of this disclosure relate to an antenna cell. An antenna cell may include a first circularly polarized dipole antenna that includes a first pair of differently fed conductive elements, the first circularly polarized dipole antenna being right hand circularly polarized. The antenna cell may include a second circularly polarized dipole antenna that includes a second pair of differently fed conductive elements, the second circularly polarized dipole antenna being left hand circularly polarized. The first circularly polarized dipole antenna and the second circularly polarized dipole antenna may be geometrically orthogonal and configured to radiate concurrently. The first circularly polarized dipole antenna may be positioned adjacent to the second circularly polarized dipole antenna.

Antenna elements and electronic devices are provided, including an antenna element includes a first radiator, a second radiator, and a radiator array. The first radiator is connected to a ground plane through a grounding component, the second radiator is spaced from the ground plane and disposed opposite to the ground plane, and the second radiator and the first radiator are spaced apart. The radiator array is spaced from the first radiator and disposed opposite to the first radiator, and is located on a side that is of the first radiator and that is further from the ground plane. The radiator array includes at least two sub-radiators, and the at least two sub-radiators are spaced from each other in an extension direction of a plane on which the radiator array is located. The first radiator includes a first hollow region, and the radiator array includes a second hollow region.

A low-band radiator comprises: a radiation substrate; a first dipole radiation portion formed from a conductor line on one surface of the radiation substrate and comprising two first loop arms each having the length extending in a predetermined first direction and formed in a loop shape having one end open; a second dipole radiation portion formed from a conductor line on one surface of the radiation surface, comprising two second loop arms each having the length extending in a predetermined second direction and formed in a loop shape having one end open, and disposed so as to intersect the first dipole radiation portion; and a balun portion coupled to the other surface of the radiation substrate and applying power feeding signals, respectively corresponding to the first and second loop arms, to two open ends of the loops.A low-band radiator comprises: a radiation substrate; a first dipole radiation portion formed from a conductor line on one surface of the radiation substrate and comprising two first loop arms each having the length extending in a predetermined first direction and formed in a loop shape having one end open; a second dipole radiation portion formed from a conductor line on one surface of the radiation surface, comprising two second loop arms each having the length extending in a predetermined second direction and formed in a loop shape having one end open, and disposed so as to intersect the first dipole radiation portion; and a balun portion coupled to the other surface of the radiation substrate and applying power feeding signals, respectively corresponding to the first and second loop arms, to two open ends of the loops.

Techniques are provided for improving antenna isolation and angle-of-arrival (AoA) performance of an antenna array. An example antenna array includes a plurality of patch antenna elements disposed on a planar substrate, and one or more resonator elements disposed on the planar substrate and between each of the plurality of patch antenna elements, wherein each of the one or more resonator elements includes a first repeating S-shaped conductor in a first orientation, and a second repeating S-shaped conductor in a second orientation that is rotated 180 degrees relative to the first orientation.

The invention provides a millimeter wave regular modular sparse active phased-array antenna which comprises a comprehensive mother board which is provided with a radio frequency power synthesis / distribution network, a component control network and a component power supply network. The plurality of sparse antenna modules are arranged above the comprehensive mother board; the chip assembly is arranged below the comprehensive mother board; the digital and power supply unit is arranged on the side, away from the comprehensive mother board, of the chip assembly and comprises a phased array wave control module and a power supply module, and the phased array wave control module is connected with the system master control and assembly control network; the power supply module is connected with a system power supply and a power supply network; the sparse antenna module and the comprehensive mother board are vertically stacked, and vertical interconnection is realized through a plurality of layers of PCBs; the integrated mother board is vertically connected with the digital and power supply unit through a plug-in low-frequency connector. According to the invention, decoupling of the integrated antenna can be realized; the sparse antenna module adopts sparse active feed, so that the number of array active channels and the heat flux density can be effectively reduced, and the system cost is effectively reduced.

The utility model discloses a double-frequency circularly polarized fusion antenna with a large frequency ratio, which comprises a first dielectric plate and a second dielectric plate, the first dielectric plate is positioned above the second dielectric plate, and the lower surface of the first dielectric plate is a copper-clad layer serving as a grounding plate. And a first metal radiator, a second metal radiator, a third metal radiator and a fourth metal radiator are arranged on the upper surface of the antenna. One end, close to the center of the dielectric plate, of the radiator is loaded with a metal column and connected with the grounding plate, and one end, away from the center of the dielectric plate, of the radiator is loaded with a millimeter wave metal probe. A microwave feed network and four 180-degree phase difference power dividers are arranged on the lower surface of the second dielectric plate, an output port of the microwave feed network is connected with the four microwave metal probes, and output ports of the 180-degree phase difference power dividers are connected with the eight millimeter wave metal probes. The dual-frequency circular polarization antenna has a dual-frequency circular polarization characteristic, can effectively reduce the influence of a multipath effect, and achieves the multiplexing of the radiator, thereby reducing the demands for the space resources of communication equipment.

The invention provides a wide-angle scanning dual-circularly-polarized phased-array antenna unit, which belongs to the field of dual-circularly-polarized antennas and comprises a first dielectric layer, a second dielectric layer and a third dielectric layer which are sequentially stacked, the antenna radiator is arranged on the side, away from the second dielectric layer, of the first dielectric layer, the antenna radiator comprises four radiation patches, each radiation patch comprises a metal patch and a loading branch knot, and each metal patch is provided with a slotted structure; the first metal ground layer is clamped between the first dielectric layer and the second dielectric layer, and a cross coupling gap and a first coupling gap and a second coupling gap which are perpendicular to each other are formed in the first metal ground layer; the U-shaped feeder line is clamped between the second dielectric layer and the third dielectric layer, and two ends of the U-shaped feeder line are respectively connected with a coaxial feed column penetrating through the third dielectric layer; the second metal ground layer is arranged on the side, away from the second dielectric layer, of the third dielectric layer; an array is also provided; the problem that a traditional circularly polarized antenna is narrow in impedance bandwidth and limited in polarization is solved.

There is provided a system and method of detecting a direction of arrival of one or more target signals using an antenna array, the method comprising, i) generating a map representing a ratio of a co-polarization (Co-pol) pattern received by the first beam to a cross-polarization (X-pol) pattern received by the second beam; ii) obtaining Co-pol and X-pol signal strengths of the one or more target signals received by the first and second beams in step (i); iii) obtaining the Co-pol to X-pol ratio of each of the one or more target signals; iv) normalizing the generated map; v) normalizing the Co-pol to X-pol ratios of the one or more target signals; and vi) for each target signal: finding area(s), within the normalized generated map, which substantially match the normalized Co-pol to X-pol ratio of the target signal; and identifying said area(s) of the normalized generated map as potential direction(s) of arrival of the target signal.

The invention provides an antenna device and a base station antenna system, the antenna device comprises a reflection plate, a radiation unit and a feed network, and the reflection plate is provided with a first opening. The radiation unit comprises a radiation body and a feed branch knot, and the radiation body is coupled with the feed branch knot. The radiating body is arranged on one side of the reflecting plate, and a gap is formed between the radiating body and the reflecting plate. And at least part of the feed branch is arranged in the first opening in a penetrating manner. The feed network is arranged on the side, away from the radiation unit, of the reflecting plate, a gap is formed between the feed network and the reflecting plate, and the feed network is coupled with the feed branch knot. According to the antenna device, the radiating body located on one side of the reflecting plate penetrates through the first opening in the reflecting plate through the feed branch knot and then is in coupling connection with the feed network located on the other side of the reflecting plate, the structure of the antenna device is simplified, the number of parts is reduced, the weight is reduced, and overall assembly of the antenna device is facilitated.

A dual circularly polarized antenna array includes an insulating substrate, an M number of feed modules, and an M number of antenna groups. The insulating substrate includes an M number of preset points. The M antenna groups are respectively disposed on the M preset points, and each antenna group includes four antennas. Any two opposite ones of the four antennas jointly have a 180-degree rotational symmetry relative to a corresponding one of the M preset points. Each antenna includes a conductive sheet, and a first feed point and a second feed point that are electrically coupled to one of the M feed modules. The first feed points of the four antennas can jointly generate a left-hand circular polarization through one of the M feed modules, and the second feed points of the four antennas can jointly generate a right-hand circular polarization through one of the M feed modules.

Methods, systems, and devices for wireless communication are described. In some systems, a first device may generate a plurality of signals via a first circular antenna array that contains a first quantity of antenna elements disposed in a circle. The first device may transmit a first signal of the plurality of signals using a first orbital angular momentum (OAM) mode and a first subset of the first quantity of antenna elements. Additionally, the first device may transmit, a second signal of the plurality of signals using a second (OAM) mode and a second subset of the first quantity of antenna elements, where the second subset may be exclusive of the first subset.

Dual-polarized antennas with ring balun excitation are disclosed. In certain embodiments, a dual-polarized antenna includes an antenna element and a ring balun for providing excitation of the antenna element. The ring balun includes conductive segments electrically connected in a ring, a first input port that receives a first single-ended RF signal of a first signal polarization, and a second input port that receives a second single-ended RF signal of a second signal polarization. The ring balun further includes a first output port and a second output port that collectively provide a first differential RF signal of the first signal polarization to the antenna element, and a third output port and a fourth output port that collectively provide a second differential RF signal of the second signal polarization to the antenna element.

Millimeter wave (mmWave) technologies, devices, and methods related to transceivers, receivers, and antenna structures for wireless communications are described. Various aspects include collocated millimeter wave (mmWave) antennas and near field communication (NFC) antennas, scalable phased array radio transceiver architecture (SPARTA), phased array distributed communication systems with MIMO support and phase noise synchronization on a single coaxial cable, passing RF signals over cable (RFoC) in distributed phased array communication systems, clock noise leakage reduction, IF to RF auxiliary chips for backward and forward compatibility and modularity, on-package matching networks, 5G scalable receiver (Rx) architectures, and the like.