604results about "Resonant antennas" patented technology

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 device may include a mainboard including a grounding unit, a radio-frequency circuit, and a conductor, wherein an annular radiation slot is provided on the conductor. The device may include a feeding terminal having a first end connected to a feeding point of the conductor and a second end electrically connected to the radio-frequency circuit of the mainboard. The device may include a first inductor having a first end connected to a grounding point of the conductor and a second end electrically connected to the grounding unit of the mainboard. The device may include a first capacitor provided in the annular radiation slot and having two electrodes respectively connected to both ends of the annular radiation slot in a width direction of the annular radiation slot, located between the feeding terminal and the first inductor in a length direction of the annular radiation slot.

The embodiment of the invention provides a dual-frequency base station antenna, and belongs to the technical field of antenna equipment, the dual-frequency base station antenna comprises a grounding plate, two dielectric substrates are laminated on the grounding plate, each dielectric substrate is correspondingly provided with a radiation unit, and the radiation signal frequency bands of the two radiation units are different; the radiation unit comprises a radiation patch and a metal through hole array which are arranged on the dielectric substrate, the radiation patch is a fan-shaped patch, the metal through hole array is arranged around the arc-shaped edge of the radiation patch, and the metal through hole array, the grounding plate, the dielectric substrate and the radiation patch jointly form a substrate integrated waveguide resonant cavity; the substrate integrated waveguide resonant cavity is configured to couple and excite the radiation patch after being externally excited so as to radiate a signal of a preset frequency band through the radiation patch. The dual-frequency base station antenna provided by the embodiment of the invention has excellent pilot frequency isolation performance, and can realize bandwidth expansion and radiation optimization effects.

The application discloses an antenna device and an antenna system. The antenna device is an antenna array composed of multiple microstrip antenna units. Each microstrip antenna unit comprises a dielectric substrate, a radiation patch, a metal back plate, a feed probe and a shorting post. The radiation patch is located on the upper surface of the dielectric substrate, the metal back plate is located on the lower surface of the dielectric substrate, the feed probe penetrates the dielectric substrate to connect one end of the radiation patch with the metal back plate, and the shorting post penetrates the dielectric substrate to connect the other end of the radiation patch with the metal back plate. By configuring the shorting post on the radiation patch and simultaneously exciting the first-order mode and the second-order mode, the radiation power of the microstrip antenna unit in a preset area can be suppressed to generate a radiation zero point, so that the signal radiated by the microstrip antenna unit has asymmetry, and the asymmetry of the antenna array is realized. The antenna system composed of the antenna array can realize the coupling suppression of the transmitting and receiving arrays of the antenna system, and further improve the isolation of the transmitting and receiving arrays.

The invention discloses a broadband dual-circularly-polarized low-cost phased-array antenna array element, which comprises an antenna radiation structure and a slot feed structure which are arranged independently from each other, and is characterized in that the antenna radiation structure comprises a parasitic radiation layer, a first dielectric substrate, an excitation radiation layer and a second dielectric substrate which are arranged in a laminated manner; the slot feed structure comprises a slot layer, a third dielectric substrate, a strip-shaped transmission line and a fourth dielectric substrate; the antenna layer structure and the slot feed structure realize electromagnetic coupling transmission through the slot layer; a hollow symmetrical structure is arranged in the middle of the first dielectric substrate, and the hollow part is used as an air medium to reduce dielectric loss; the gap layer is provided with a multidirectional coupling gap structure; the strip-shaped transmission line is provided with at least two feed ports, and dual circularly polarized radiation is formed in the antenna layer structure through excitation of different feed ports. The antenna radiation layer has no metal through hole or blind hole, can be processed in a layered manner, has the advantages of low processing cost and high yield, and ensures impedance bandwidth while realizing dual circular polarization.

The invention provides a 1bit circular polarization reconfigurable transmission unit, which belongs to the field of low orbit satellite communication and comprises a radiation patch, a first dielectric substrate, a grounding plate, a second dielectric substrate, a biasing circuit, a third dielectric substrate and a receiving patch which are sequentially arranged from top to bottom, a single side of the radiation patch is slotted and is connected to a first capacitor disc in the center of the grounding plate through a metalized through hole in the center of the first dielectric substrate, an internal patch of the receiving patch is connected to a second capacitor disc through a metalized through hole in the center of the third dielectric substrate, and the second capacitor disc is located on the third dielectric substrate and is connected to the biasing circuit. The external patch of the receiving patch is connected to the biasing circuit through a metalized through hole, and the internal patch and the external patch are bridged through two PIN diodes with the same orientation; the invention further provides an array antenna. Metallized via holes are replaced by capacitor disc coupling, complexity and cost are greatly reduced, structural symmetry is broken through single-side slotting of the radiation patches, conversion efficiency of linearly polarized waves is improved during array forming, and circular polarization performance is improved.

The utility model relates to a missile-borne low-profile, miniaturized and low-frequency-division-ratio dual-frequency antenna, and belongs to the technical field of communication. The dual-frequency antenna comprises a metal bottom plate, an antenna housing fixed with the metal bottom plate, and a dielectric substrate fixed between the metal bottom plate and the antenna housing. Wherein the dielectric substrate comprises an upper-layer dielectric substrate and a lower-layer dielectric substrate which are bonded with each other; metal patches are loaded on the surfaces of the upper-layer dielectric substrate and the lower-layer dielectric substrate; the upper-layer dielectric substrate and the lower-layer dielectric substrate are electrically connected through a metal column located on the central axis of the dielectric substrate, and the lower-layer dielectric substrate and the metal bottom plate are electrically connected through a feed probe located on the central axis; and the metal patches on the surfaces of the upper-layer dielectric substrate and the lower-layer dielectric substrate are horizontally symmetrical along the central axis. According to the utility model, the dual-frequency antenna with low profile, small size and low frequency division ratio is realized, the frequency division ratio is low under the condition that the basic radiation efficiency is guaranteed, and two narrowband working frequency bands can be provided in the s wave band.

The invention discloses an electrically-controlled beam scanning leaky-wave antenna and communication equipment, belongs to the technical field of antennas, and is used for solving the problems that an existing antenna is complex in structure and the beam scanning angle is limited under a fixed frequency. The electrically controlled beam scanning leaky-wave antenna comprises a gap waveguide and a plurality of radiation units. The gap waveguide comprises a cover plate and a metal bottom plate which are oppositely arranged, and a ridge structure arranged on the upper surface of the metal bottom plate in the transmission direction of the electromagnetic waves, and the gap waveguide is used for transmitting the electromagnetic waves in a traveling wave mode; the plurality of radiation units are sequentially arranged on the cover plate along the extension direction of the ridge structure; each radiation unit comprises a radiation patch, two radiation slots and two electric control switches which are sequentially arranged from top to bottom, and the radiation slots and the electric control switches are distributed in a central symmetry manner relative to the radiation patch; and each electric control switch is used for controlling the working state of the corresponding radiation slot so as to regulate and control the radiation phase of the radiation unit and realize beam scanning.

The invention discloses a wide-beam omnidirectional circularly polarized antenna and a radio communication system comprising the same, and belongs to the technical field of linear communication antennae, the wide-beam omnidirectional circularly polarized antenna comprises a feed connector, a printed board feed balun, a conical hollow substrate, a feed printed board and a radiation printed patch; by adopting the split type conical substrate which is composed of the feed printed board at the top and the conical hollow substrate, connection and conduction of the feed printed board and other structures are facilitated, and the process cost is reduced while the process credibility is enhanced; the feed form of the antenna is set to be printed board balun feed, the microstrip line extending according to a certain curvilinear equation is arranged on the copper layer of the printed board balun, and the printed board feed balun is connected and conducted with the spiral radiation printed patch through the feed printed board, so that the performance requirements of low axial ratio and high gain of the antenna can be ensured, and the antenna can be widely applied to the field of antenna devices. And the technical requirements of wide wave beams can be met.

An antenna module implemented as a multi-layered package includes: a printed circuit board (PCB) having a plurality of layers; a radio frequency integrated circuit (RFIC) disposed on a first surface among outermost surfaces of the PCB; a first array antenna disposed on a second surface, perpendicular to the first surface, among the outermost surfaces of the PCB; a second array antenna disposed on a third surface, perpendicular to the first and second surfaces, among the outermost surfaces of the PCB; and a third array antenna disposed on a fourth surface, perpendicular to the second and third surfaces, among the outermost surfaces of the PCB. First to third signal lines connected to the first to third array antennas form first to third coplanar waveguide structures in which first to third ground regions are formed, respectively.

The invention relates to a microstrip patch antenna based on an antipodal double-helix groove, which comprises the antipodal double-helix groove, a patch, a substrate, a grounding plate and a coaxial probe, and is characterized in that the substrate is mounted on the grounding plate, the patch is mounted on the substrate, the antipodal double-helix groove is formed in the patch, and the coaxial probe sequentially penetrates through the grounding plate, the substrate and the patch; the coaxial probe is used for feeding the patch, and a radio frequency electromagnetic field is generated between the patch and the grounding plate. According to the microstrip patch antenna, the antipodal double-spiral grooves are formed, the path length of current flowing through the patch is increased, the resonant frequency of the antenna is reduced to a large extent, meanwhile, the good radiation characteristic is kept, the antenna radiation efficiency is high, the directional diagram is regular, and the electrical size of the microstrip patch antenna is reduced while the high radiation efficiency is kept.

An antenna structure includes: an antenna board including a first surface and a second surface located that is opposite to the first surface; patch antenna elements arrayed on the first surface of the antenna board; a feeding electrode formed on the second surface of the antenna board and electrically connected to each of the patch antenna elements; a power supply control board that is disposed away from the second surface of the antenna board, extends in a direction intersecting the second surface of the antenna board, and includes a third surface and a fourth surface that is opposite to the third surface; and a connection member disposed on the second surface of the antenna board and on at least one of the third surface and the fourth surface of the power supply control board, the connection member electrically connecting the feeding electrode and the power supply control board.

The present invention provides a dual board patch array antenna, comprising: a radio board; a first-layer antenna board and a second-layer antenna board; the ground plane of the radio board is in contact with the first radiation ground plane of the first-layer antenna board through a patch-type conductive pad to form an extended ground area of ground connection; the probes of the radio board pass through and contact the patch microwave transmission line of the first-layer antenna board to form an electrical connection; wherein the patch microwave transmission line is assigned to the antenna radiating element of the second-layer antenna board as a vertically polarized antenna and a horizontally polarized antenna; the antenna radiating element contacts the first radiation surface on the first-layer antenna board through the conductor pad on the first layer antenna board, so as to expand the radiation surface area of the dual board patch array antenna.

According to various embodiments, an electronic device comprises: a housing; a first substrate disposed in the housing; a second substrate arranged to face the first substrate; a conductive patch disposed on the second substrate; at least one conductive post located near the conductive patch on the second substrate; and a wireless communication circuit disposed on the first substrate and configured to transmit and / or receive wireless signals via the conductive patch, wherein one end of the at least one conductive post is positioned to be couplable to the conductive patch, and the other end can be electromagnetically connected to a ground layer of the first substrate.

This application provides a dual-polarized differential base station antenna, relating to the field of communication technology. The dual-polarized differential base station antenna includes a dielectric substrate, a first resonant cavity, multiple second resonant cavity groups, a coupling component, and a coaxial feed conductor. The first resonant cavity is disposed inside the dielectric substrate and extends to the upper and lower surfaces of the substrate. A first radiation slot is provided on the upper surface of the first resonant cavity. Multiple second resonant cavity groups are symmetrically distributed around the first resonant cavity. Each second resonant cavity group includes at least one second resonant cavity, and a second radiation slot is provided on the upper surface of each second resonant cavity. The coupling component connects the first resonant cavity to each second resonant cavity group. The coaxial feed conductor is connected to a ground plane and penetrates the dielectric substrate to connect to the upper surface of the first resonant cavity. The dual-polarized differential base station antenna of this application achieves high gain, high isolation, and wide bandwidth performance while maintaining a low profile structure.

The embodiment of the invention provides an antenna system and terminal equipment, the antenna system is used for the terminal equipment, the antenna system comprises a first radiator, a second radiator, a first feed structure, a second feed structure and an adjusting unit, and a gap is formed between the first radiator and the second radiator. The adjusting unit is connected between the first radiating body and the second radiating body, the adjusting unit has an on state and an off state, and the adjusting unit is used for realizing electric conduction between the first radiating body and the second radiating body in the on state. When the adjusting unit is in a conducting state, the first feed structure receives feed and excites the first radiator and the second radiator to generate third resonance, or the second feed structure receives feed and excites the first radiator and the second radiator to generate fourth resonance. According to the invention, the adjustment unit is conducted so that different radiators in the antenna system participate in radiation together, the radiation performance of the antenna system can be optimized, and the communication requirement of the terminal equipment is met.

The present disclosure provides a method for context-aware circuit design for a wearable device. The method includes determining a peak power requirement at a selected operating voltage for a rectifier circuit to be coupled between an antenna and system circuitry of the wearable device, the peak power requirement is based on a distance (d) between the wearable device and a power transmitter; determining a real value of at least on real circuit component of the rectifier circuit based on the peak power requirement; and determining a reactive value of at least one reactive component of the rectifier circuit based on the peak power requirement.

The application discloses a compact dielectric resonator antenna module, which comprises a substrate assembly and a dielectric resonator arranged on the substrate assembly. The dielectric resonator comprises a connecting part and four isosceles trapezoidal columns. The height of the connecting part is less than the height of the isosceles trapezoidal columns. The four isosceles trapezoidal columns are evenly distributed around the connecting part. The short bottom surface of the isosceles trapezoidal column is connected with the connecting part. The long bottom surface of the isosceles trapezoidal column has a compensation part extending away from the connecting part. The connecting part, the isosceles trapezoidal column and the compensation part are integrally formed into an integrated structure. The dielectric resonator antenna module has a compact structure and a small overall volume. The dielectric resonator only needs to be installed once as a whole, thereby reducing the alignment error generated in the installation process and facilitating the guarantee of the antenna performance. The height difference between the connecting part and the isosceles trapezoidal column in the height direction achieves a decoupling effect to some extent, thereby reducing the coupling between the isosceles trapezoidal columns. The dielectric resonator antenna module can cover the N258 frequency band in 5G.

A windshield having: an outer transparent layer defining an inner surface and an outer surface disposed opposite the inner surface; an inner transparent layer defining an outer surface and an inner surface disposed opposite the outer surface; an intermediate layer disposed between an inner surface of the outer transparent layer and an inner surface of the inner transparent layer; the circularly polarized antenna is arranged on the outer surface of the inner transparent layer; the unidirectional antenna is arranged on the inner surface of the outer transparent layer and the outer surface of the inner transparent layer; and a broadband antenna disposed on an outer surface of the inner transparent layer.

An antenna element includes a ground conductor, an energization patch conductor positioned on an upper side relative to the ground conductor, and a non-energization patch conductor positioned on an upper side relative to the energization patch conductor. The energization patch conductor includes a first side and a second side extending along a resonance direction. The non-energization patch conductor includes a plurality of segments. The plurality of segments include a first segment positioned along the first side and a second segment positioned along the second side. In plan view, a total area of the non-energization patch conductor is smaller than an area of the energization patch conductor.

A liquid crystal antenna and a method of beamforming of electromagnetic waves are provided. The method includes: receiving by a feeding circuit board a feeding signal to form a feeding electromagnetic wave; applying a plurality of bias voltages respectively between a ground plane and a plurality of patch antenna units of a liquid crystal modulation structure to form an amplitude interference pattern, where a liquid crystal layer of the liquid crystal modulation structure is disposed between the ground plane and the patch antenna units; and utilizing interference of the feeding electromagnetic wave and the amplitude interference pattern to form an electromagnetic beam, where the electromagnetic beam is directed to a specific angle, and an intensity and the specific angle of the electromagnetic beam are modulated according to the variations of the feeding electromagnetic wave and the amplitude interference pattern.

The application discloses an antenna pair with high isolation and low cross polarization level, which comprises a first radiation patch and a second radiation patch arranged as two half-circle ring structures, and the first radiation patch and the second radiation patch are connected through a first branch and a second branch; the first radiation patch and the second radiation patch work in a full-wave mode; the first branch and the second branch are arranged to overlap the resonant frequencies under differential and common mode excitation of two feed ports, and good matching is ensured, so that the isolation of the first radiation patch and the second radiation patch in the band is effectively improved; through the above arrangement, the mode Q value under differential and common mode excitation is close to the same, and the first radiation patch and the second radiation patch can further have high isolation in a wider frequency range. In addition, by introducing a first short pin group and a second short pin group, the polarization current in the x-axis direction can be effectively weakened, and the cross polarization level is reduced.

The present invention provides a radome incorporating a circularly polarized metamaterial, including a dielectric carrier and a circularly polarized metamaterial layer attached to or embedded into the dielectric carrier and electrically floating with respect to ground. The circularly polarized metamaterial layer includes a plurality of X-shaped openings arranged in an array and exposing the dielectric carrier, and a first radiation pattern transmits through the circularly polarized metamaterial layer, resulting in a second radiation pattern having enhanced focusing characteristics compared to the first radiation pattern.

A wearable device (10) has an internal antenna (22, 24) within a housing (20), and an external conductor patch (30) over which the housing (20) is mounted. The conductor patch (30) has an area greater than the area of an internal ground plane (22) of the antenna (22, 24).

The invention discloses an ultra-wideband small radio frequency antenna for PE pipe detection, and relates to the technical field of antennas. The antenna comprises an insulating medium substrate and a radiation structure arranged on the front surface of the insulating medium substrate. The radiation structure comprises a main radiation patch formed by an index gradual change slot line, an annular patch arranged at an interval with the tail end of the main radiation patch, and a strip-shaped patch arranged at an interval with the annular patch. The resistor element comprises a first resistor, a second resistor and a third resistor, and the main radiation patch is connected with the annular patch through the first resistor; a radiation part of the antenna forms a specific resistance loading network through a radiation structure and a resistance element, and a slot line feed structure feeds energy, so that resonance with lower frequency can be effectively excited, and the low-frequency cut-off frequency of the antenna is reduced, which is crucial for detecting a deep target; therefore, the input impedance of the antenna is very stable in the whole ultra-wideband, the energy transmission efficiency is ensured, and the gain and efficiency of the antenna are gradually increased.

A coupled antenna module includes an antenna carrying substrate, a first antenna structure and a second antenna structure. The first antenna structure has a first radiation layer disposed on the upper surface of the antenna carrying substrate, a first extension layer disposed on the first side surface of the antenna carrying substrate, and a first conductive layer disposed on the lower surface of the antenna carrying substrate. The second antenna structure has a second radiation layer disposed on the upper surface of the antenna carrying substrate, a second extension layer disposed on the second side surface of the antenna carrying substrate, and a second conductive layer disposed on the lower surface of the antenna carrying substrate. The first antenna structure and the second antenna structure can be configured to be applied to a first antenna operating frequency range and a second antenna operating frequency range, respectively.

A mobile communication device having a first component and a second component is provided. The first component and the second component are configured movable relative to each other within a predefined position range. The predefined position range includes a plurality of positions of the first component relative to the second component. The mobile communication device further includes a position determination unit configured to determine a position of the first component relative to the second component in the predefined position range. At least one of the first component and the second component includes an antenna configured for wireless communication. The mobile communication device further includes a controller configured to drive the antenna based on the determined position of the first component relative to the second component.