196 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.

The utility model provides a scanning frame test system. The scanning frame test system comprises a support leg adjusting platform fixedly connected with a plurality of push rod support legs; the rotatable deflection angle adjusting table is arranged on the upper surface of the supporting leg adjusting table; the base linear module is mounted on the upper side of the deflection angle adjusting table; the tower linear module is movably mounted on the base linear module; and the probe box is vertically and movably mounted on the tower linear module. According to the technical scheme of the embodiment, plane adjustment of the supporting leg adjusting table can be achieved through stretching and retracting of different push rod supporting legs, angle adjustment is achieved through rotation of the deflection angle adjusting table, and transverse and longitudinal movement of the probe box is achieved based on the base linear module and the tower linear module. Therefore, the probe box can identify the planar antenna in any posture, and a structural basis is provided for improving the accuracy of antenna testing.

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 invention relates to an antenna type sensor, system and method for monitoring biochemical indexes. The sensor comprises a flexible substrate; the radio frequency tag chip works in a first frequency band and is matched with the planar antenna of the first frequency band, and the antenna has a first performance parameter; the sensing area is modified with a sensitive group, after the sensitive group combines / adsorbs biochemical substances, the physical characteristics of the sensing area are changed, and then the first performance parameter of the antenna is changed into a second performance parameter; the first frequency band is matched with a set frequency band of radio frequency communication of the mobile terminal or matched with a frequency band corresponding to a close-range radio frequency communication function of the mobile terminal, so that the sensor senses electromagnetic waves of the first frequency band emitted by the mobile terminal through the antenna, the electromagnetic waves cause electromagnetic induction in the antenna, and electric energy is obtained; and transmitting a radio frequency signal containing the identifier in the radio frequency tag chip through the antenna based on the current second performance parameter. Highly integrated design, a self-powered mechanism and wireless communication with an intelligent terminal are realized, and a more practical and efficient solution is provided for biochemical index detection.

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 solves the problem that signals transmitted by conventional signal sensing devices are susceptible to environmental interference. [Solution] The signal sensing device includes a main body 1 and two signal sensing elements 2, the two signal sensing elements are installed inside the main body, an insulating layer I is sandwiched between the two signal sensing elements, the two signal sensing elements each have a signal transmission segment 2a and a signal sensing segment 2b electrically connected to each other, the signal transmission segments are parallel planar antennas and have a meandering line type antenna shape, in the plane where the signal transmission segments are parallel to each other, the vertical projections of the antenna shapes do not completely overlap, and when a part of the main body forms an enclosing part to enclose the object to be measured, a part or all of the signal sensing segments are located in the enclosing part. According to the present invention, the quality of signal transmission can be improved.

A radar measuring device with a housing at least partially filled with a potting compound, a general-diffuse planar antenna arranged in the housing, at least one transmitter and at least one receiver that are connected to the planar antenna, and a lens arranged in a main emission direction of the planar antenna for radiation emitted from the planar antenna, wherein a separating apparatus is arranged in the housing and is designed and arranged in such a way that a penetration of the potting compound into an area within the separating apparatus and between the antenna and the lens is prevented.

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.

A radio frequency signal transmitting and / or receiving device (900) intended to be integrated into a motion detection system in a motor vehicle and comprising: a printed circuit (930); at least one planar antenna (910), referred to as a T-shaped antenna, comprising a first metal excitation surface and a first ground plane which are superimposed, at least one of the first ground plane and the first metal excitation surface having a T-shaped region; the radiation pattern of the T-shaped antenna presents two strong radiation side lobes which are oriented substantially parallel to the plane of the printed circuit and are separated by a weak central radiation area; and-at least one planar antenna (920), referred to as a rectangular antenna, comprising a second metallic excitation surface and a second ground plane which are superimposed, the second metallic excitation surface comprising a rectangular region, the rectangular region has a generally rectangular shape and is configured to cause the radiation pattern of the rectangular antenna to exhibit two strong radiation sidelobes oriented substantially orthogonal to the plane of the printed circuit and separated by a weak central radiation region.

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.

An assortment of radar sensors in different variant embodiments. Each radar sensor has: a housing terminated by a radome, a circuit board that is equipped on the side facing away from the radome with at least one radio-frequency module, and an antenna structure on the side of the circuit board facing the radome. The housing is realized identically in all variant embodiments. The antenna structure has a planar antenna structure in at least one variant embodiment, and has a hollow conductor structure in at least one variant embodiment.

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.

To provide an antenna case which can be easily equipped to an apparatus case for storing an apparatus which deals with a reception signal.SOLUTION: An antenna case 1 can store a flat antenna, and has an attachment nail and a second drop prevention rib 114a in the back surface. When the attachment nail is inserted into a through-hole formed in the back surface of a second apparatus case 16, the second apparatus case 16 is provisionally fixed and a leg part 233a of the second apparatus case 16 goes over the second drop prevention rib 114a and the attachment nail becomes in contact with the side edge of the leg part 233a so that the second apparatus case 16 is fixed.SELECTED DRAWING: Figure 6

The utility model relates to the technical field of planar antennas, and discloses a 79G planar antenna, which comprises a box body, a bottom plate is arranged at the bottom of the box body, and a decrement structure is arranged in the box body. According to the 79G planar antenna, the decrement structure is arranged, when the 79G planar antenna needs to be manufactured, the upper layer plate, the middle layer plate and the lower layer plate are welded in a segmented mode, the structure is exquisite, redundant plates are saved, labor intensity is reduced, the radiation assembly is provided with a row of radiation surface waveguide port array holes, a single row of array holes are formed, and the hole diameter is 0.5 mm. According to the reduction structure, the use effect is not influenced and the cost is reduced due to the fact that the hole with the diameter of 0.5 mm is formed, when a 79G planar antenna is installed, the welded three-layer sleeve plate slides into the box body through the cooperation of the two sliding blocks and the two sliding grooves, the transmission socket is connected with the transmission interface, and finally the bottom plate is in threaded connection with the bottom of the box body. The manufacturing time can be saved during manufacturing, the labor intensity is reduced, and the cost is reduced.

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.