131 results about "Planar antennas" patented technology

The invention discloses a lightweight paper-based planar lens for electromagnetic wave beam modulation and a planar antenna thereof, and belongs to the technical field of antennas. The paper base main body is formed by forming a cavity structure which is surrounded by a sheet-shaped paper base and is periodically arranged at intervals, and the paper base main body is provided with an upper plane and a lower plane which are opposite to each other and are respectively an incident plane and an emergent plane of electromagnetic waves; thin-film-shaped symbol units made of metal materials are distributed and attached to the sheet-shaped paper base; according to the symbol units, the metal surface area of the symbol units in the unit volume in the paper-based main body is compared, and the metal surface area of the unit volume in the middle of the plane lens is larger than the periphery of the plane lens. The feed source is mounted close to the incident plane; the electromagnetic waves are propagated in the plane lens in a curve path and converge and are emitted out of the plane lens. When the feed source moves, wide-angle scanning of wave beams can be achieved, the gain reduction of the planar antenna is smaller than 2dB within the scanning range of + / -50 degrees, and meanwhile very high gain and aperture efficiency can be obtained.

A wireless-access point includes a first radio to transmit RF signals in a first channel; a second radio to transmit, simultaneously to transmissions of the RF signals by the first radio, RF signals in a second, non-overlapping channel; and a plurality of planar antennas coupled with corresponding first and second radios to receive the RF signals. First and second planar antennas are coupled with the first radio to receive therefrom, in the first channel, a first RF signal and a second RF signal, respectively. The first planar antenna is arranged with its normal along a first direction. The second planar antenna is arranged with its normal along a second, different direction. A third planar antenna is coupled with the second radio to receive therefrom a third RF signal in the second channel, the third planar antenna being arranged with its normal along a third direction.

For improved Ku band communications, an antenna system includes a planar antenna surface, at least one waveguide feed network, and a waveguide. The planar antenna surface is coupled to at least one port. The at least one waveguide feed network includes an H plane junction splitter and at least two E plane junction splitters. The H plane junction splitter is disposed on a channel septum in a channel. A splitter axis of the channel septum and the H plane junction splitter is rotated about a P axis. The at least two E plane junction splitters are each disposed on septum and coupled to the H plane junction splitter via the channel. The waveguide is coupled to the waveguide feed network.

Provided herein are various enhancements for radio frequency antennas and antenna assemblies. In one example, an antenna assembly includes a cavity structure comprising an interior volume surrounded by a wall and having an opening at a first longitudinal end and a cap at a second longitudinal end. A conductive material disposed on a portion of the wall of the cavity structure and the cap such that a dielectric gap is established between the conductive material and a planar antenna when the planar antenna is coupled onto the first longitudinal end of the cavity structure.

An electromagnetic-wave absorber and reflector includes a base material, and a plurality of unit patterns made of conductive material disposed at even intervals on a surface of the base material. In the electromagnetic-wave absorber and reflector, a portion of each of the plurality of unit patterns overlaps with a portion of adjacent one of the plurality of unit patterns in a stacking direction of the base material, and the portion of each of the plurality of unit patterns and the portion of adjacent one of the plurality of unit patterns have a dielectric layer interposed in between.

A microstrip patch log periodic antenna (MSPLPA) may include a ground plane, a dielectric material, a printed circuit board comprising a microstrip patches. Each of the microstrip patches may be configured to transmit and / or receive signals. The dielectric material may be disposed between the ground plane and the printed circuit board. Each of the microstrip patches may be frequency scaled.

A signal sensing device includes a body and two signal sensing elements disposed in the body. An insulating layer is sandwiched between the two signal sensing elements. Each of the two signal sensing elements incudes a signal transmission section and a signal sensing section in electrical connection with the signal transmission section. The signal transmission sections are planar antennae parallel to each other and each having an antenna shape of meander-line type. The antenna shape of each transmission section has a vertical projection on a plane parallel to each signal transmission section. The vertical projections of the antenna shapes do not overlap completely. When a portion of the body forms a surrounding portion which surrounds a to-be-sensed target, a portion or an entirety of each signal sensing section is located on the surrounding portion.

The embodiment of the invention provides an antenna assembly and electronic equipment. The antenna assembly comprises a breakpoint-free metal frame, an antenna branch knot and a parasitic branch knot, the antenna branch and the parasitic branch are arranged on the base plane of the breakpoint-free metal frame; the antenna directions of the antenna branch knot and the parasitic branch knot are arranged towards a clearance zone in the breakpoint-free metal frame, and the joint of the parasitic branch knot and the base plane is arranged far away from the clearance zone relative to a feeding point on the antenna branch knot; wherein the antenna branch is used for covering medium-high frequency wave bands through a direct feed excitation mode, a mode of space coupling excitation of the breakpoint-free metal frame and a mode of space coupling excitation of the parasitic branch. The antenna assembly is used for achieving the balance effect of integrated design of multi-band efficient radiation and beauty in a limited space.

This paper describes a multi-port planar antenna system with digital reconfigurability to adjust the beamdirection function of the system. A substrate is provided, and a grid of parasitic elements is printed on the surface of the substrate. One or more driving radiating elements, such as monopole antennas or dipole antennas, are printed on the substrate near the parasitic elements. Switching elements between adjacent parasitic elements are then configured to guide the radiation direction in a specific direction in the azimuth plane. The small form factor of this planar antenna system can be used in MIMO applications employed by fifth-generation (5G) devices such as mobile phones, Internet of Things (IoT) devices, and vehicles.

This application provides an earphone case and audio device, belonging to the field of earphone technology. The earphone case includes a housing and an antenna. The housing includes a box body and a protective cover, the protective cover being rotatably connected to the box body along a rotation axis, and the housing being positioned on a first plane. The antenna is located inside the box body, and the ratio of the antenna's first projected length to its second projected length is greater than or equal to 0.8. The first projected length is the distance between the two points furthest apart on the antenna's orthographic projection on the second plane in a first direction. The second plane is perpendicular to the extension direction of the rotation axis and perpendicular to the first plane, and the first direction is perpendicular to the first plane. The second projected length is the distance between the two points furthest apart on the antenna's orthographic projection on the first plane. This configuration can improve the antenna's radiation efficiency and increase the search distance when the housing is stationary.

An antenna array with multiple testing antenna elements 14 that can test a device-under-test 12 in a practical way, thus allowing for a multitude of efficiencies (e.g. time saving, less errors, less mechanical components, etc.). At least a portion of each of the planer antenna elements 14 of an antenna array may be formed between an upper ground plane 16 and a lower ground plane 18, which may enhance electromagnetic characteristics. In other configurations, defective ground structures {22, 23} may be formed in the upper ground plane 16 and / or a lower ground plane 18, which may enhance electromagnetic characteristics. In some configurations, the defective ground structure {22, 23} may be formed above a pole portion 14P of at least one planer antenna element 14. In other configurations, the defective ground structure {22, 23} is formed between the pole portions 14P of two adjacent planer antenna elements 14.

The invention discloses an antenna near-field coupling partitioning method for scattered radiation collaborative design of a planar antenna, and relates to the technical field of antennas. The method comprises the following steps: acquiring electromagnetic field distribution data of an antenna under a target working frequency; then, according to the electromagnetic field distribution data, calculating a field function partition criterion index of the space around the antenna, so as to divide a function area of the near field of the antenna; and finally, according to the field function partition criterion index, dividing the function areas of the near field of the antenna, and loading different electromagnetic function structures in different function areas. According to the method, a systematic and quantifiable design criterion is adopted, the method is used for near-field coupling partition of the planar antenna, the layout of electromagnetic functional structures with different functions is guided, and therefore the collaborative decoupling design of the radiation performance and scattering performance of the antenna is achieved.

Image pickup apparatuses capable of ensuring sufficient wireless performance while suppressing an increase in size of the image pickup apparatuses, are provided. An image pickup apparatus includes a rectangular wireless antenna with an antenna pattern in a planar shape, a housing having a substantially hexahedral shape and including a conductive member, and a wireless cover that forms a part of a ridge extending between a rear surface and an upper surface of the housing. The wireless cover is formed of a non-conductive member. The wireless antenna is arranged inside the image pickup apparatus while facing the wireless cover at a predetermined angle with respect to the housing around an axis extending in a width direction of the image pickup apparatus.

A switching element includes a phase transition layer that includes a substance that undergoes a metal-insulator phase transition and is arranged on signal lines through which signals to be transmitted and received propagate, a heat conduction layer that is an insulator having a thermal conductivity higher than a thermal conductivity of the phase transition layer and is formed on a surface of the phase transition layer, and a heat generation element that has a rectangular shape having a long side along a direction perpendicular to an extension direction of the signal lines and a short side shorter than a side length of the phase transition layer, and that is thermally connected to the phase transition layer and the heat conduction layer.

1. Name of the design product: Planar antenna. 2. Use of the design product: For object detection. 3. Design key points of the design product: Lies in the shape. 4. Picture or photograph that best shows the design key points: Perspective view. 5. This design product is a thin product, and the left view, right view, top view, and bottom view are omitted.

This specification provides one or more embodiments of an antenna structure and a ring-shaped device. The antenna structure includes: a substrate ring; an antenna coil disposed circumferentially on the substrate ring, the antenna coil having a ring antenna sensing region and a planar antenna sensing region, the magnetic field direction of the ring antenna sensing region being arranged along the axial direction of the substrate ring, and the magnetic field direction of the planar antenna sensing region being parallel to a plane perpendicular to the axial direction.

The disclosure describes examples of antennas used for communication with an implantable medical device (IMD). As one example, the IMD includes a housing configured to house communication circuitry within an internal side of the housing, and a planar antenna, having a curved structure, that is stacked on an external side of the housing and coupled to the communication circuitry. As another example, the IMD includes a housing configured to house communication circuitry within an internal side of the housing and an antenna having a curved structure formed on an external side of the housing and coupled to the communication circuitry. A resonant frequency of the antenna is based on a dielectric constant of tissue surrounding the antenna when the IMD is implanted, and a current distribution of the antenna is in-phase in opposite sides of the antenna.

A package structure is provided that includes a planar core structure including a first side and a second side opposite the first side. The package structure also includes an antenna structure disposed on the first side of the planar core structure. The antenna structure includes a plurality of first stacks, each first stack including a first patterned conductive layer formed on a first insulating layer, an antenna formed on one or more first patterned conductive layers of the first stack, the antenna including at least one L-shaped structure. The package structure also includes an interface structure disposed on the second side of the planar core structure, and an antenna feed structure formed in the interface structure and the planar core structure and routed through the interface structure and the planar core structure, wherein the antenna feed structure is not connected to the planar antenna.

A wireless-access point includes a first radio to transmit RF signals in a first channel; a second radio to transmit, simultaneously to transmissions of the RF signals by the first radio, RF signals in a second, non-overlapping channel; and a plurality of planar antennas coupled with corresponding first and second radios to receive the RF signals. First and second planar antennas are coupled with the first radio to receive therefrom, in the first channel, a first RF signal and a second RF signal, respectively. The first planar antenna is arranged with its normal along a first direction. The second planar antenna is arranged with its normal along a second, different direction. A third planar antenna is coupled with the second radio to receive therefrom a third RF signal in the second channel, the third planar antenna being arranged with its normal along a third direction.

There is provided a first device comprising means for: transmitting, to a second device, information indicative of a geometry of a plurality of non-planar antennas of the first device; determining at least two reference antennas of the plurality of non-planar antennas based on information indicating a geometry of the plurality of non-planar antennas; and transmitting the reference signal to the second device via the determined at least two reference antennas without transmitting the reference signal via the remainder of the plurality of non-planar antennas.

The application discloses a light paper-based planar lens for electromagnetic wave beam steering and a planar antenna thereof, and belongs to the technical field of antennas. The paper-based main body is formed by surrounding a periodic interval arranged cavity structure with a sheet-shaped paper-based body, and has two opposite planes, i.e. an incident plane and an emission plane of electromagnetic waves; the sheet-shaped paper-based body is distributed with symbol units of a film-shaped metal material; the symbol units are compared with the metal surface area of the symbol units in a unit volume in the paper-based main body, and the metal surface area of a unit volume in the middle of the planar lens is greater than that of the periphery of the planar lens. The planar antenna further comprises a feed source which is installed close to the incident plane; electromagnetic waves propagate in the planar lens in a curved path and converge to be emitted out of the planar lens. When the feed source moves, the application can realize wide-angle scanning of the beam, and in a scanning range of ±50 degrees, the gain of the planar antenna decreases by less than 2dB, and very high gain and aperture efficiency can be achieved.

The utility model provides a high-gain high-sensitivity photon wireless signal transmitting and receiving shared device. The high-gain high-sensitivity photon wireless signal transmitting and receiving shared device comprises a metal shell, a silicon lens, a PCB circuit board, an optical fiber module, a PIN-PD integrated antenna chip, a planar antenna, a horn antenna and the like, wherein the silicon lens, the PCB circuit board, the optical fiber module, the PIN-PD integrated antenna chip and the planar antenna are fixed in the metal shell; the high-gain high-sensitivity photon wireless signal transmitting and receiving common device provided by the embodiment of the utility model not only can be used as a photon wireless signal receiving device, but also can be used as a photon wireless signal transmitting device; in addition, the photon wireless signal transmitting and receiving sharing device provided by the embodiment of the utility model can achieve the effects of improving the signal transmitting power and improving the signal receiving sensitivity. In addition, the purpose of continuously adjusting the transmitting frequency can be achieved.

To provide a planar antenna equipped with a temperature-controllable metal-insulator phase transition element using a thin-film transistor circuit.SOLUTION: A planar antenna 1 includes an antenna substrate 11 on which are arranged at least one patch antenna P, a signal line LS electromagnetically coupled to the patch antenna P, and a metal-insulator phase transition element V provided on the signal line LS, and a temperature control substrate including a thin-film transistor circuit, having at least one heating element H temperature-controlled using the thin-film transistor circuit as a drive circuit. The antenna substrate and the temperature control substrate are laminated together such that heat from the heating element H can be conducted to the metal-insulator phase transition element V.SELECTED DRAWING: Figure 2

The application relates to an antenna module, a laminated assembly and a vehicle. In the antenna module, the currents on the two feeding branches of a dipole antenna are in and out, so that the currents on the two feeding branches of the same dipole antenna are in phase, the currents on the two radiation branches are in the same direction and in phase, the currents on the radiation branches of multiple dipole antennas are in phase and are transmitted in the same direction, a ring-distributed radiation branch is constructed, a current ring is formed on the multiple radiation branches when a feeding port accesses an excitation signal, and a ring current resonance mode at a target frequency band is supported. Planar antenna arrangement can be performed on any non-conductor plane substrate, when applied to a vehicle, metal arrangement such as a vehicle bumper can be avoided, a single antenna module can support omnidirectional radiation at a target frequency band, the number of antenna modules is reduced, and the antenna cost is reduced.

The invention relates to a device for transmitting / receiving an electromagnetic wave, the device comprising: - a reconfigurable planar antenna (Ant) configured to transmit at least one electromagnetic beam (EB) at a plurality of angles, wherein the electromagnetic beam has a central wavelength; - a dome (DO) having a surface S, wherein the surface has, in at least one peripheral portion, a structuring in at least one type of pattern, wherein the patterns have at least one dimension smaller than the central wavelength, wherein the patterns are also non-resonant, and wherein the surface and the structuring are configured to apply a given phase law to a beam emitted by the antenna at a first angle (θA), such that the beam is deflected by a second angle (θB) dependent on the first angle and greater than the first angle.

The utility model discloses a miniaturized combined communication navigation antenna, which comprises a circuit board, and an air microstrip measuring antenna, a 4G Bluetooth combined antenna and an LORA antenna which are respectively connected on the circuit board from inside to outside, the top surfaces of the air microstrip measuring antenna, the 4G Bluetooth combined antenna and the LORA antenna are not positioned on the same plane, the LORA antenna adopts a vertical loop antenna, and the air microstrip measuring antenna, the 4G Bluetooth combined antenna and the LORA antenna are arranged on the same plane. A circuit of the air microstrip measurement antenna adopts a four-feed-point bridge coupling sheet feeding mode; the antenna of the utility model adopts a separated non-planar structural design, can increase the spatial distance, improve the isolation between the air microstrip measuring antenna and the 4G Bluetooth combined antenna, reduce the influence of the 4G antenna on the phase center of the air microstrip measuring antenna, and adopts the vertical loop antenna to form an LORA combined navigation antenna or a 4G communication combined navigation antenna, thereby improving the antenna performance. And in the 4G full-band, the standing wave is relatively low, the efficiency is relatively high, the communication transmission speed is high, and the omnidirectional performance of the antenna is improved.

The invention relates to a three-dimensional ultra-wideband Vivaldi antenna, and belongs to the technical field of electromagnetic fields and microwaves. The antenna is expanded in the H-plane direction, and a traditional planar antenna is converted into a three-dimensional antenna, so that the radiation aperture area of the antenna is effectively increased, and the radiation efficiency of the antenna is improved. The antenna comprises a feed structure and a double-radiation structure, the feed structure is composed of a coaxial line, a microstrip line and two microstrip line-to-parallel double lines, and the double-radiation structure is composed of two Vivaldi antennas which are the same in shape and are in mirror symmetry. Under the condition that the size of the E surface of the antenna is kept unchanged, the radiation aperture area is increased through the three-dimensional design, the radiation efficiency of the antenna and the aperture utilization rate of the array antenna are effectively improved, the technical problems that a traditional planar Vivaldi antenna is low in radiation efficiency, and the aperture is wasted during array application are solved, and the antenna is suitable for large-scale popularization and application. And miniaturization of the array antenna can be realized to a certain extent. In addition, the antenna structure form has high universality and can be suitable for antennas in other forms.

Provided herein are various enhancements for planar antennas and corresponding antenna arrays. In one example, an assembly includes a plurality of antenna cells formed in a shared printed circuit board stackup, a rigid superstrate layer mounted onto the printed circuit board stackup, and a substrate layer mounting the printed circuit board stackup to a baseplate. Each of the antenna cells comprise conductive plates at quadrants of the antenna cell and coupled through vias in the layered stackup arrangement from a plate layer to a ground plane layer, flared antenna feeds arranged in an orthogonal pair positioned within central gaps between the conductive plates and below the plate layer, and barrier vias positioned in sets below the conductive plates in each of the quadrants and arrayed about the flared antenna feeds.

A mounting fixture assembly 100 for a flat antenna (10, Figure 2A) comprises: a cabinet component assembly 110 having a base member 112 and opposing side brackets 114 to secure the assembly to opposin

The invention provides a planar antenna and a microwave oven, the planar antenna comprises a radiation main body and a terminal, the radiation main body is used for generating directional electromagnetic waves, the radiation main body is provided with a plurality of long edges and a plurality of chamfered edges, the plurality of long edges jointly control the antenna frequency and the S parameter, and each chamfered edge controls the S parameter of the antenna; the terminal is connected with the radiation main body, and is fed to the radiation main body to form a single-stage planar antenna; according to the planar antenna, fine adjustment and optimization of the antenna frequency and the S parameter are realized through the plurality of long edges and the plurality of chamfered edges arranged on the radiation main body, the design not only improves the integration level and reliability of the antenna, but also enables the antenna to adapt to complex communication environments and various frequency band requirements, and more importantly, the planar antenna is applied to a microwave oven, so that the application range of the planar antenna is widened. The temperature of each point in the microwave oven can be controlled in a differentiated mode, advantage heating of different frequencies and different space points is achieved, and therefore the heating requirements of different food materials and different cooking requirements are met.