524 results about "Antenna feed" patented technology

A calibration system includes a beamformer lattice including at least a first beamformer, the first beamformer corresponding to a first subset of antenna cells of a plurality of antenna cells including a plurality of feed lines extending between the first beamformer and each of the first subset of antenna cells, and the first beamformer including a first calibration section for comparing a reference signal to a non-reference signal; and a first calibration line corresponding with the first beamformer, wherein the first calibration line is configured to deliver a first reference signal (mTx) from the first beamformer to be received by a first antenna feed line for comparison with a first non-reference signal (Rx) in the first beamformer, and / or wherein the first calibration line is configured to deliver a second non-reference signal (Tx) from a second antenna feed line for comparison with a second reference signal (mRx) in the first beamformer.

Transport networks, network elements, and methods of use are described herein, including a transmitter comprising a client-side input, transmitter circuitry, and antennas. The client-side input is configured to receive baseband signals having client data encoded therein. The transmitter circuitry is configured to receive the baseband signals from the client-side input and generate antenna feed signals based on the baseband signals. The antennas are configured to receive the antenna feed signals from the transmitter circuitry, generate radiated signals based on the antenna feed signals, and couple the radiated signals into a hollow waveguide. Each of the radiated signals is a radiated electromagnetic wave configured for coherent detection and has a frequency in a range between 300 Gigahertz (GHz) and 10 Terahertz (THz).

Provided in the present application are a filter antenna, an antenna feed system, a base station and a communication system. The filter antenna in the present application comprises a radiating surface, a filter and a metal back cavity, wherein the radiating surface comprises a dielectric substrate, a feed network and a radiating structure, the feed network and the radiating structure being arranged on a surface of the dielectric substrate; the dielectric substrate covers the metal back cavity; the filter is accommodated in the metal back cavity; the feed network comprises a combination point and an adapter, the combination point and the adapter being connected by means of a conductive wire; the radiating structure comprises a feed patch, the adapter and the feed patch being connected by means of a conductive wire; and the filter comprises a probe, the probe being connected to the combination point. In the present application, a combination point is connected to a feed source by means of a filter, so that a feed network excites electromagnetic waves, and the electromagnetic waves are radiated by means of a feed patch. The filter antenna provided in the present application integrates a filter and a radiating surface, such that the filter antenna has a smaller size and lower loss, thereby helping to improve the integration level of an antenna feed system and thus realizing the miniaturization design of the antenna feed system.

A display device includes: a substrate; a first sensor electrode and a second sensor electrode disposed on the substrate; an antenna electrically separated from the first sensor electrode to transmit and receive radio frequency signals; and an antenna feed line electrically connected to the antenna pattern.

A vehicle includes a window with an antenna assembly. The window includes a glass surface and a metal frame along a perimeter of the glass surface. The antenna assembly is disposed on the glass surface and includes an antenna, a feed point and a ground plane. The antenna has a first end and a second end opposite the first end and is disposed in a visible region of the window. The feed point is located at the first end of the antenna. The ground plane is connected to the antenna at the first end. The metal frame is on top of at least part of the ground plane, and the ground plane is electrically coupled to the metal frame.

The invention provides a Q / V frequency band large-scale satellite communication load channel optimization method, which comprises a forward input link and a backward output link, and is characterized in that the forward input link comprises a V frequency band multi-beam antenna feed source array, a plurality of input preselectors, a V frequency band low noise amplifier input switch ring and a V / Ka integrated receiver assembly which are connected in sequence; the output end of the V-band multi-beam antenna feed source array is connected with the input end of the V / Ka integrated receiver assembly through a waveguide. The reverse output link comprises a Ka / Q frequency converter, a Q-band channel filter, a Q-band traveling wave tube amplifier, a change-over switch, a Q-band output duplexer or filter and a Q-band feed beam which are connected in sequence, and the output end of the Ka / Q frequency converter is connected to the input end of the Q-band channel filter through a waveguide; and the output end of the Q-band channel filter is directly connected to the input end of the Q-band traveling wave tube amplifier through the waveguide. Therefore, the method is low in link loss, high in space utilization rate and high in feasibility.

The invention discloses a two-dimensional adjustable radar cross section enhanced surface. The enhanced surface is formed by adding a one-dimensional Van atta array of a phase shifter into a feeder line and copying the one-dimensional Van atta array on the other dimension. The one-dimensional Van atta array has a low profile, and under the condition that the incoming wave direction is known, electromagnetic waves are made to backtrack along the incoming wave direction by regulating and controlling the phase of a phase shifter in the array. The unit structure of the one-dimensional Van atta array is composed of an antenna and a phase shifter. The antenna is a slot-coupled feed microstrip antenna, the radiation patch is rectangular, the dielectric substrate is arranged below the radiation patch, the antenna grounding plane with a slot is arranged below the dielectric substrate, the slot is I-shaped, the second dielectric substrate is arranged, and the T-shaped antenna feed microstrip line is arranged below the second dielectric substrate. The antenna feed microstrip line is connected with the phase shifter, and the units of the array at equal intervals are connected in pairs through microstrip lines with the same length to form a one-dimensional Van atta array.

The invention discloses an unmanned aerial vehicle ground penetrating radar clutter suppression method and a transceiving array device, and belongs to the technical field of ground penetrating radars. The device comprises a single receiving antenna, multiple groups of transmitting antennas and a signal source, all the antennas are homogeneous, all antenna ports are located at the same horizontal height, and the signal source can provide two paths of excitation signals with the same frequency, the same amplitude and the opposite phase for the transmitting antennas at the same time; each group of transmitting and receiving antennas comprises two transmitting antennas and a receiving antenna located at the midpoint of a connecting line of feeding points of the two transmitting antennas, and feeding ports of the transmitting and receiving antennas are located on the same straight line. The receiving antenna is installed on the telescopic rotary table, the axial rotation direction of the receiving antenna can be achieved by adjusting the telescopic rotary table, and it is ensured that when multiple sets of transmitting antennas share the same receiving antenna, the polarization directions of the transmitting antennas and the receiving antennas are consistent. The clutter suppression method of the underground target echo signal is realized based on the device. According to the invention, the problem that underground target echo signals are easily submerged in strong clutters and are difficult to effectively extract is solved.

An antenna arrangement comprises a dielectric substrate with a first surface and second surface extending between a first edge and second edge of the substrate. A conductive pattern is arranged on the first surface that forms first, second, and third antenna elements. The first antenna element is arranged in the vicinity of the first edge and connected to a first antenna feed. The second antenna element is arranged in the vicinity of the second edge and connected to a second antenna feed. The third antenna element is arranged between the first and second antenna elements and connected to a third antenna feed. An intermediate element, at least partly functioning as a ground layer, is arranged between the first, second and third antenna elements. A non-conductive zone separates the first antenna element and the intermediate element. The second antenna element and the intermediate element are in conductive contact with each other.

The present application relates to the technical field of wireless communication networks, and discloses a communication device, a communication control method, an electronic device, and a readable medium. According to the communication device in the present application, an equalization circuit having a signal equalization function is added between a power amplifier and an antenna array of a base station antenna feed system. Among two power amplifiers, when one power amplifier is turned off, the equalization circuit can equally divide a signal sent by the other power amplifier that is not turned off into two paths, so that a port and an antenna unit of a feed network corresponding to the turned-off power amplifier can obtain the signal; thus, a mobile device in a cell served by the antenna unit corresponding to the turned-off power amplifier can communicate normally.

An antenna assembly includes a balanced antenna feed configured to receive a differential signal and a ground plane. The assembly further includes a first conductive dipole arm in planar alignment with a surface of the ground plane and a second conductive dipole arm in planar alignment with the surface of the ground plane and adjacent to the first conductive dipole arm. The assembly further includes a first feedline in electrical communication with the first conductive dipole arm and the balanced antenna feed and a second feedline in electrical communication with the second conductive dipole arm and the balanced antenna feed. The assembly further includes a conductive wall (“H-wall”) in electrical communication with the ground plane and having an end adjacent to, and physically separate from, the second conductive dipole arm. The H-wall has an axial length orthogonal to the ground plane.

An electronic device may have a phased antenna array. An antenna in the array may include a rectangular patch element with diagonal axes. The antenna may have first and second antenna feeds coupled to the patch element along the diagonal axes. The antenna may be rotated at a forty-five degree angle relative to other antennas in the array. The antenna may have one or two layers of parasitic elements overlapping the patch element. For example, the antenna may have a layer of coplanar parasitic patches separated by a gap. The antenna may also have an additional parasitic patch that is located farther from the patch element than the layer of coplanar parasitic patches. The additional parasitic patch may overlap the patch element and the gap in the coplanar parasitic patches. The antenna may exhibit a relatively small footprint and minimal mutual coupling with other antennas in the array.

The invention relates to the technical field of spaceborne antennas, and particularly discloses a spaceborne reflector antenna structure capable of realizing feed source expansion with high precision. Comprising a base, a reflecting surface installed on the base, an unfolding arm located above the base and rotationally matched with the base, a feed source installed at the end, away from the base, of the unfolding arm, and a first pressing and releasing device installed on the feed source and used for fixing the feed source and the base. The reflector antenna structure is compact in structure, high in reliability and capable of achieving feed source unfolding with high precision, position errors of the antenna feed source and the reflector can be effectively reduced, and it is ensured that indexes such as antenna beam pointing, shape and gain meet system requirements.

Certain aspects of the present disclosure provide techniques for multi-stage impedance tuning for a radio frequency (RF) transmitter. An example apparatus includes RF circuitry comprising an amplifier, an impedance tuning circuit coupled to an output of the amplifier, and an antenna tuner coupled between an antenna feed and an output of the impedance tuning circuit. The apparatus further includes one or more memories and one or more processors coupled to the one or more memories. The one or more processors are configured to cause the apparatus to configure at least one parameter of the impedance tuning circuit or the amplifier based at least in part on at least one load characteristic at the antenna feed; and communicate one or more signals via the RF circuitry while the at least one parameter is configured based at least in part on the at least one load characteristic at the antenna feed.

The embodiment of the application provides an antenna system and an electronic device, wherein the antenna system comprises a first antenna and a second antenna, the first antenna comprises a first radiator and a second radiator, and the second antenna comprises a first radiator and a third radiator; two ends of the first radiator are electrically connected to a ground plane respectively, a first end of the second radiator and a first end of the third radiator are relatively far away from each other and are connected or coupled to the first radiator respectively, a second end of the second radiator and a second end of the third radiator are oppositely arranged and form a gap, the antenna system feeds the first antenna through a first feeding connection point on the second radiator and feeds the second antenna through a second feeding connection point on the third radiator, a brand-new antenna system is constructed, high isolation between the first antenna and the second antenna can be realized, and meanwhile, miniaturization of an antenna aperture and a low SAR value can be realized.

An electronic device may be provided with peripheral conductive housing structures, a rear wall, and a vent that includes a conductive cowling. The device may include an antenna having an antenna arm coupled to a positive antenna feed terminal and having a parasitic element. The parasitic element may be formed from a conductive trace that is layered onto the rear wall, that is indirectly fed by the antenna arm, and that overlaps a portion of the conductive cowling. The parasitic element may be shorted to a conductive bracket on the rear wall or may be separated from the bracket by a gap. If desired, the conductive cowling may form some or all of a parasitic element for the antenna. The conductive cowling may be indirectly fed by the conductive trace and / or may include an extension that is indirectly fed by the antenna arm.

The invention provides a high-gain broadband antenna based on a resonant ring and lens structure. A main body part of the antenna comprises a bow-tie dipole broadband log-periodic antenna fed by a parallel strip-shaped microstrip line, a lens, a resonant ring, a supporting back plate and a supporting arm. And the lens structure is formed by processing a Teflon material. The top of the parallel strip-shaped microstrip line feed bow tie dipole broadband log-periodic antenna body part is composed of a microstrip line and three bow tie elements with different sizes, and the bottom of the parallel strip-shaped microstrip line feed bow tie dipole broadband log-periodic antenna body part is composed of three bow tie elements which are transited to the microstrip line and have the same size with the top but are symmetrical in direction, wherein the plane conical shape is symmetrical to a quarter circle. The SMA interface on the back is embedded in the center of the supporting backboard, the lens is located at the end-to-end of the feed source antenna, the structure of the lens is composed of a semi-sphere on the top and two cylinders with different radiuses at the bottom of the middle, and the lens is connected with the supporting backboard through the supporting arm. And the resonant ring is located at the tail end of the log-periodic antenna structure. The working frequency band of the antenna ranges from 7.18 GHz to 12.55 GHz, the gain in the frequency range ranges from 11.1 dBi to 16.0 dBi, and the gain is the highest when the frequency is 10.0 GHz. The antenna has the advantages of simple structure, low cost, wide band, high gain and the like.

The invention relates to an antenna feed structure, a multi-band independent electrically tunable antenna and an antenna assembly method, and the antenna feed structure comprises a common wall, two phase shift cavities and a feed panel. A plurality of sub-cavities are formed in the phase shift cavity, an avoiding groove is formed in one end of each sub-cavity in the second direction, and a phase shift circuit is arranged in each sub-cavity; the feed panel comprises a main body plate, protruding plates are arranged on the two sides of the main body plate in the first direction respectively, and two signal conducting layers are arranged on the side, back on to the common wall, of the main body plate at intervals; the surface of the side, facing the main body plate, of the common wall is lower than the surface of the end, provided with the receding grooves, of the phase shifting cavity, so that the protruding plates can stretch into the corresponding receding grooves, and the signal conductive layers are electrically connected with the feed circuits in the corresponding sub-cavities in the receding grooves. And each signal conducting layer comprises a combining conducting section, so that the filter circuits connected with the phase shift circuits in the plurality of sub-cavities are electrically connected with the corresponding combining conducting sections respectively. Therefore, the number of parts and welding spots is reduced, and the production efficiency can be improved.

A circularly polarized antenna includes a finite, conducting base plate defining a base plane, and an S-shaped top part defining a top plane parallel to the base plane, wherein the top plane has a non-zero distance from the base plane, and wherein both ends of the S-shaped top part have an end contact coupled either to the base plate or to an antenna feed. The antenna is configured to be fed single-ended or differentially to produce at least one pair of co-aligned electric and magnetic dipoles.

A calibration system includes a beamformer lattice including at least a first beamformer, the first beamformer corresponding to a first subset of antenna cells of a plurality of antenna cells including a plurality of feed lines extending between the first beamformer and each of the first subset of antenna cells, and the first beamformer including a first calibration section for comparing a reference signal to a non-reference signal; and a first calibration line corresponding with the first beamformer, wherein the first calibration line is configured to deliver a first reference signal (mTx) from the first beamformer to be received by a first antenna feed line for comparison with a first non-reference signal (Rx) in the first beamformer, and / or wherein the first calibration line is configured to deliver a second non-reference signal (Tx) from a second antenna feed line for comparison with a second reference signal (mRx) in the first beamformer.

Network elements and methods of use, including a transmitter comprising a client-side input, signal and clock conditioning blocks, a modulation block, and antennas. The client-side input receives baseband signals having client data. The signal conditioning block adjusts signal characteristics of the baseband signals to generate intermediate signals. The clock conditioning block receives a first clock signal having a first clock frequency and adjusts signal characteristics of the first clock signal to generate a second clock signal having a harmonic frequency of the first clock frequency. The modulation block modulates the intermediate signals onto the second clock signal to generate antenna feed signals. The antennas generate radiated signals based on the antenna feed signals and couple the radiated signals into hollow waveguides. The radiated signals are radiated electromagnetic waves configured for coherent detection with a transmission frequency in a range between 300 Gigahertz (GHz) and 10 Terahertz (THz).

Described herein are feed networks for phased array antennas. An exemplary feed combiner assembly for a phased array antenna can electrically combine multiple radiating elements in a column for connection to a common feed line of a feed network. This enables transmission of a signal to the multiple radiating elements with a single feed line, reducing the number of feed lines required for feeding the radiating elements. The feed combiner assembly can provide for a more compact feed network and easier replacement than a conventional feed line connection configuration. Each radiating element of the phased array antenna can have a capacitive coupling portion that capacitively couples the radiating element to adjacent radiating elements. The spacing between adjacent radiating elements can be controlled by a non-conductive, overmolded spacer disposed on the capacitive coupling portion, which aligns and maintains a minimum separation between adjacent radiating elements.

An electronic device may include one or more radios and one or more antennas. Radio-frequency transmission lines may couple a radio to an antenna feed structure. The antenna feed structure may be wireless coupled to one or more antenna resonating elements. An intervening slot element may be disposed between the antenna feed structure and the one or more antenna resonating elements. The antenna feed structure may be disposed on a package substrate forming an integrated circuit package. The one or more antenna resonating elements may be disposed on an antenna support structure. The integrated circuit package and the antenna support structure may be mounted to the same side or opposing sides of a system substrate.

A wideband spiral antenna system for a vehicle is provided. A planar spiral antenna is fabricated on a substrate. The planar spiral antenna includes an antenna feed. A first dielectric panel is disposed adjacent to a first side of the substrate. A dielectric puck has a first puck side disposed adjacent to the antenna feed on a second side of the substrate opposing the first side of the substrate. A radio frequency (RF) connector is disposed adjacent to a second puck side of the dielectric puck. The second puck side opposes the first puck side of the dielectric puck. One or more conductive vias extend from the antenna feed through the dielectric puck to the RF connector electrically coupling the antenna feed to the RF connector.

The present application provides an antenna system and an electronic device, wherein the antenna system includes a first antenna and a ground. The first antenna includes: a first feeding circuit, an electrical device, a first branch, and a second branch. The second branch is coupled to the first branch at a first connection point, and the first branch is coupled to the ground to form a return ground for the first antenna. The second branch includes a first sub-branch and a second sub-branch, and the first sub-branch and the second sub-branch are located on both sides of the first connection point. The first sub-branch is coupled to the first feeding circuit for feeding the first antenna. In addition, the length of the second sub-branch is different from the length of the first sub-branch, and the second sub-branch is coupled to the ground through an electrical device.

The invention provides a phase shifting system, a base station antenna and a base station antenna feeder system. The phase shifting system comprises a phase shifting device, a main feeder line and a first transmission line. The phase shifting device is provided with an input port and an output port, the first output end of the main feeder line is connected to the input port, the input end of the first transmission line is connected to the output port, and the output end of the first transmission line is used for being connected with an antenna unit. The main feeder line and the first transmission line are both made of metal. According to the antenna, the main feeder line and the first transmission line are both made of metal, compared with a coaxial line and a metal plate transmission line made of a metal material, processing and manufacturing are convenient, long-distance signal transmission can be achieved, meanwhile, under the condition of long-distance signal transmission, the metal material transmission line has small loss, and the radiation performance of the antenna is improved.

Methods, systems, and apparatus for making and using a lens antenna fed by a phased array. In some implementations, a communication device includes an antenna system includes a lens antenna and a feed antenna. The lens antenna can be a gradient index lens having a substantially ellipsoidal shape, and having a plurality of layers that respectively have different dielectric constants. The feed antenna can include an array of antenna elements and can be spaced apart from the lens antenna. The communication device can include one or more processors configured to control excitation patterns for the antenna elements of the feed antenna to form beams directed at any of a range of spatial locations. The one or more processors can be configured to cause excitation patterns that concurrently excite multiple antenna elements of the feed antenna with different magnitudes and phase characteristics.

The application provides an antenna structure for a watch and a smart watch, and the technical scheme points of the application include the following: a shell is internally provided with a containing cavity; a mainboard is arranged in the containing cavity; a screen assembly is arranged in the containing cavity and is oppositely arranged with the mainboard; an antenna radiator is arranged in the containing cavity and is located on the side of the mainboard facing the screen assembly; an antenna feed point is arranged on the mainboard and is connected with the antenna radiator; wherein the antenna radiator, the mainboard and the screen assembly jointly form a resonant cavity structure; the application has the advantages of saving the internal space of the equipment and meeting the performance requirements of the antenna.

A radar level gauge system, for determining a filling level of a product in a tank, comprises a transceiver, an antenna assembly, and processing. The antenna assembly comprises a dielectric antenna body having a conical external surface facing an interior of the tank and an internal surface facing away from the interior of the tank, when the antenna assembly is arranged at the opening in the tank wall, and an antenna feed coupled to the transceiver, and configured to propagate the transmit signal towards the internal surface of the dielectric antenna body as electromagnetic waves with convex wavefronts. The internal surface of the dielectric antenna body is shaped to refract the transmit signal from the antenna feed in such a way that the transmit signal propagates towards the surface of the product in the tank as electromagnetic waves with substantially planar wavefronts, following passage through the dielectric antenna body.