1582results about "Antenna feed intermediates" patented technology

An aspect of the present invention is an antenna pattern used in a UHF-band RFID inlay. The antenna pattern includes a first element and a second element. The first element is formed to include a loop portion and an emission portion. The loop portion includes a pair of electric power supply portions. The emission portion is connected to the loop portion, and extends line-symmetrically from the loop portion. The emission portion operates as a dipole antenna to emit a radio wave whose half wavelength is a first length. The second element is formed apart from the first element. The second element operates as a dipole antenna by electromagnetic coupling with the first element to emit a radio wave whose half wavelength is a second length. The second length is different from the first length.

A broadband omni-directional bicone antenna. The antenna can comprise conductive surfaces of conical voids provided within a solid dielectric structure. The outside surface of the solid structure can support a radio frequency (RF) lens geometry operable for beam forming. The beam forming can modify the elevation pattern of the electromagnetic radiation from the bicone antenna. The solid dielectric structure may be machined or molded from a single piece of material. The conical voids provided within the solid structure can be metallized to provide conductive bicone radiators. The outer surface beam shaping lenses can be zoned or continuous and can provide elevation patterns with increased gain, cosecant squared falloff, or various other patterns. The beam shaping lens may be formed from any low-loss dielectric. Alternatively, the lens may be formed from a less dense material such as dielectric foam that can support radial conductive beam forming vanes.

An RFID tag including an inlay that is thin and easy to manufacture. The above problem is solved by an RFID tag including an inlay in which an IC chip and an antenna are provided on a base material having a main surface, wherein the antenna includes a loop conductive portion having both end portions connected to the IC chip so as to form a loop shape through the IC chip, and a dipole antenna portion disposed to surround the loop conductive portion with an interval allowing inductive coupling, and the loop conductive portion and the dipole antenna portion are formed on the main surface to have same thickness based on the main surface, and the IC chip is disposed on both end portions of the loop conductive portion.

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

The invention discloses a Ka-band four-tilt-beam magnetoelectric dipole antenna, and belongs to the technical field of millimeter wave radio frequency front-end devices. Based on a magnetoelectric dipole composite radiation structure, four centrosymmetric radiation units are integrated on a low-loss substrate. The antenna comprises a probe patch of a coaxial gamma-shaped feed probe, a radiation patch, a parasitic patch, an upper dielectric substrate, a lower dielectric substrate, a middle curing layer, a shorter metal through hole of the coaxial gamma-shaped feed probe, a longer metal through hole of the coaxial gamma-shaped feed probe, a metal through hole c of the radiation patch, a metal through hole d of the parasitic patch and a metal ground backboard, a probe patch, a radiation patch and a parasitic patch of the coaxial gamma-shaped feed probe are located on the upper surface of the upper-layer dielectric substrate, and a metal ground backboard is located on the lower surface of the lower-layer dielectric substrate; the antenna has ultra-wide impedance bandwidth, has the characteristics of low cost, miniaturization, low cross polarization and back lobe suppression, and is superior to a traditional inclined beam antenna and an antenna array scheme.

An antenna assembly may include at least two PCB bases. Each PCB base may include a first multi-band antenna element, and a second multi-band antenna element, formed on each PCB base. The first multi-band antenna element and the second multi-band antenna elements can include one or more low-band radiating elements, one or more mid-band radiating elements; and one or more high-band radiating elements.

The invention discloses a dual-beam dual-circularly-polarized wide-angle scanning phased-array antenna, and belongs to the field of wireless communication. The antenna is composed of an antenna unit group. The antenna unit comprises a bottom metal floor, a fifth substrate, a 3dB bridge, a fourth substrate, an antenna metal floor, a third substrate, a second rectangular feeder line, a second substrate, a first rectangular feeder line, a first substrate and a radiation patch layer which are arranged from bottom to top; wherein the 3dB bridge is used for realizing signal transmission, and the two rectangular feeder lines have the same size and are orthogonally arranged; the radiation patch layer comprises four square metal patches and two feed discs; the square metal patches are separated through the L-shaped gaps and are connected with the antenna metal floor through the short circuit columns respectively, and the feed disc is connected with the rectangular feed line through the metal probe and connected to the output end of the 3dB bridge. The antenna unit adopts an equivalent magnetoelectric dipole form, the wide-angle scanning characteristic of the phased-array antenna is achieved, communication with two satellites can be achieved at the same time, and the overall communication efficiency is improved.

Base station antennas include a reflector; a first plurality of cross-dipole radiating elements that are arranged as a first array of cross-dipole radiating elements, each cross-dipole radiating element comprising a first dipole radiator having a first dipole arm and a second dipole arm and a second dipole radiator having a third dipole arm and a fourth dipole arm; and a plurality of parasitic monopole elements that are associated with a first of the cross-dipole radiating elements, each parasitic monopole element including a monopole radiator, wherein at least half of each monopole radiator is positioned within a footprint of the first and second dipole radiators of the first of the cross-dipole radiating elements when the first of the cross-dipole radiating elements is viewed from the front.

A vertically-polarized omnidirectional antenna, including: a body including: a host printed circuit board (PCB) including: first and second slots, and a metal flooded ground plane, first and second antenna PCBs forming four dipole pairs, the first and second antenna PCBs mounted to the host PCB, respective first to third ground connection fillet tabs, the first and second tabs being on an opposite side of the host PCB from the third tab, the first to third tabs being on a same side of its antenna PCB, an amplitude taper on each antenna PCB at transitions between the host and antenna PCBs, including: a first transmission line splitting off into a second transmission line and a third transmission line, the second transmission line feeding two antennas to form one dipole pair, the third transmission line stepping down using a quarter-wave transformer, and a radio frequency (RF) connector to receive a power supply.

Composite antennas and methods of forming the composite antennas are described. In one example, a composite antenna includes a plurality of strips of carbon fiber material, and a metal shim strip. A portion of the metal shim strip is positioned and embedded between two of the strips of carbon fiber material in a layup stack of the strips of carbon fiber material and the metal shim strip. In another example, a method of forming a composite antenna includes cutting carbon fiber material into a plurality of strips of carbon fiber material, cutting metal shim stock into a metal shim strip, arranging the strips of carbon fiber material, the metal shim strip, and an uncured resin into a layup stack of material, and curing the layup stack of material to form a laminate stack.

Disclosed is a radiator assembly configured to operate in the range of 3.4-4.2 GHz. The radiator assembly comprises a folded dipole with four dipole arms that radiate in two orthogonal polarization planes, whereby the signal of each polarization orientation is radiated by two opposite radiator arms that radiate the signal 180 degrees out of phase from each other. The radiator assembly has a balun structure that includes a balun trace that conductively couples to a ground element on the same side of the balun stem plate. The combination of the shape of the folded dipole and the balun structure reduces cross polarization between the two polarization states and maintains strong phase control between the opposing radiator arms.

Embodiments of this application provide a transmission line, a feed network, and an antenna apparatus. The transmission line is used for a radio frequency device. The transmission line includes a reflector, an insulation support, and a transmission structure. The transmission structure includes at least two side walls. The transmission structure is disposed on a surface of the insulation support, an included angle between two adjacent side walls of the transmission structure is greater than zero, and different side walls of the transmission structure are located on different surfaces of the insulation support. At least one surface of the transmission structure is disposed opposite to a part of a structure of the reflector, and a gap exists between the at least one surface of the transmission structure and the reflector. The transmission line has a small signal loss and occupies a small space.

An antenna element, an antenna module, an antenna array and an electronic device. The antenna element (4) comprises electric dipoles (41), magnetic dipoles (42) and a feed unit (43). The current of the feed unit (43) is coupled to the magnetic dipoles (42), and is then directly transmitted to the electric dipoles (41) by the magnetic dipoles (42). Each pair of electric dipoles (41) comprises two first patches (411), each first patch (411) is of a closed loop structure, and the coupled current is transmitted along the contour of the first patch (411), thereby facilitating the lengthening of a transmission path of the coupled current. For the same transmission path length, the electric dipoles (41) of this structure have a smaller volume, which can reduce the volume of the antenna element (4). Each first patch (411) of the closed loop structure reduces the radiation area of an antenna to a certain extent, and reduces the coupling between antenna elements (4), so that the radiation gain of the antenna module (100) can be improved. Therefore, the antenna element (4) can improve the radiation gain of the antenna module (100) while making the antenna module (100) smaller. (FIG. 1)

A low-profile ultra-wideband wide-angle scanning phased-array antenna based on a tight coupling structure is composed of a metal floor and a plurality of antenna units, the antenna units extend in the X polarization direction and the Y polarization direction respectively to form a plane of any size, and an antenna array is formed; the antenna unit sequentially comprises an upper substrate, a dipole antenna and a lower substrate from top to bottom, the dipole antenna is vertically and crossly placed and comprises two layers of dielectric substrates and a layer of prepreg between the two layers of dielectric substrates, and a resistor-coated pattern is printed on the upper surface of the lower substrate.

Embodiments of the present application provide a foldable electronic device, including an antenna. The antenna utilizes the first frame and the second frame provided in the foldable electronic device as radiators. A partial frame of the first frame serves as a feeding stub, and a partial frame of the second frame serves as a parasitic stub. By providing a slit in the parasitic stub, the radiation aperture of the parasitic stub is increased to improve the radiation characteristics of the antenna, so that the electronic device has better communication performance.

An antenna module includes a metal plate, a metal body and an excitation source. The metal body is provided on the metal plate, and includes a first slot and a second slot arranged crosswise and at a set angle. Each of the first slot and the second slot includes a transverse opening penetrating through the metal body along a thickness direction of the metal plate and a longitudinal opening penetrating through the metal body along a plane direction of the metal plate, and a length of the transverse opening and a length of the longitudinal opening are in a set ratio. The excitation source is configured to excite the first slot and the second slot to radiate a circularly polarized wave.

The present application provides a foldable electronic device and an antenna system thereof. The antenna system includes a main antenna unit and a parasitic antenna unit. The main antenna unit is an antenna structure having the radiation characteristics of a current loop antenna, including a feeding point and a first radiating branch provided on a first body of the electronic device. The parasitic antenna unit includes a second radiating branch provided on a second body of the electronic device. In the folded state, the first radiating branch and the second radiating branch are at least partially overlapped, and the first radiating branch is used to perform magnetic field coupling with the second radiating branch to form current loop radiation on both the first and second radiating branches, and the current directions in the current loops respectively formed on the first and second radiating branches are the same. In this way, longitudinal currents in the same direction can be simultaneously excited on the folding floor of the electronic device, thereby achieving the purpose of reducing or eliminating the energy consumed in the folded state and improving the antenna efficiency, and effectively solving the problem of poor efficiency of the low-frequency antenna of the electronic device in the folded state.

A device housing is provided for wirelessly receiving electric power in order to supply electric power to a device with an excellent power-receiving efficiency, while suppressing an increase in its size as a whole. Also, a device having the same device housing and a device housing for constituting a main body of a device which is a sensor or an actuator are provided. The device housing is provided with a power-receiving device for mainly generating an electric field or a magnetic field for performing wireless power supply. The power-receiving device includes at least one of a dipole antenna, a slot antenna, a monopole antenna, a chip antenna and an inverted-F antenna. The device housing has a size in a three-dimensional space, and expansion of its size in the three-dimensional space due to the provision of the power-receiving devices is substantially limited to one axis direction (X-axis direction) at most.

A multi-band base station antenna comprises: a reflector; a plurality of high-band radiators arranged on the reflector; and a plurality of low-band radiators arranged on the reflector. Each of the plurality of low-band radiators comprises: a radiation substrate; a first dipole radiator including a first+dipole arm and a first−dipole arm formed on the radiation substrate; a second dipole radiator including a second+dipole arm and a second−dipole arm formed on the radiation substrate; and a metal coupler coupled to the lower portion of the radiation substrate. The metal coupler comprises: a first coupling patch located below the first+dipole arm; a second coupling patch located below the first−dipole arm; a third coupling patch located below the second+dipole arm; and a fourth coupling patch located below the second−dipole arm.

Systems, devices, and methods related to dual linear polarized wideband antennas for compact antenna arrangements are provided. An example antenna structure includes a multi-layered printed circuit board (PCB); a folded magnetoelectric antenna element including a first portion disposed on a first layer of the multi-layered PCB and a first fold portion contiguous to the first portion and extending to at least a second layer of the multi-layered PCB; and a patch antenna element disposed on a third layer of the multi-layered PCB, wherein the first, second, and third layers are separate layers of the multi-layered PCB. The antenna structure further includes a first feeding port electrically coupled to the patch antenna element, and a second feeding port electrically coupled to the patch antenna element, where the first and second feeding ports are associated with different polarizations.

An electronic device having an antenna, according to one embodiment, is provided. The electronic device can include an antenna module which is disposed at the lower portion of a display region and which radiates a vertically polarized signal to the front surface of the electronic device. The antenna module can comprise: a slot array antenna disposed in a first region of a flexible substrate to radiate the vertically polarized signal in a millimeter-wave band; and a feeding portion disposed in a second region bent from the first region and in a third region bent from the second region, so as to apply a signal to each slot radiation element of the slot array antenna.

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.

Provided herein are various enhancements for radio frequency antennas and antenna arrangements. In one example, an apparatus comprises a reflector for radio frequency energy having a reflector surface, and a lens element. The lens element is configured to alter a distribution of at least a portion of the radio frequency energy reflected by the reflector surface over a detection area of a feed array positioned a selected distance from the lens element.

The invention discloses a strong-coupling phased-array antenna unit loaded with a metasurface structure, belongs to the technical field of antenna engineering, and relates to a strong-coupling phased-array antenna. According to the metasurface structure for improving the wide-angle scanning performance of the strong-coupling phased-array antenna, on the basis of square metal patches which are periodically and uniformly distributed, rectangular patches which are specially distributed and are inconsistent in length and width are introduced, so that a non-uniform metasurface matching layer structure is formed. When the H-plane wide-angle scanning of the strong-coupling phased-array antenna is carried out, the rectangular patch can equivalently play a role of a director, and the impedance change is smoother, so that the H-plane wide-angle scanning performance of the strong-coupling phased-array antenna is remarkably improved. Meanwhile, the metasurface structure has small influence on the wide-angle scanning performance of the E plane, so that the antenna can achieve good wide-angle scanning performance in both the E plane and the H plane. The metasurface is simple in structure and has the advantages of being single-layer, light in weight and easy to process.

A package structure including a semiconductor die, a redistribution layer, a plurality of antenna patterns, a die attach film, and an insulating encapsulant is provided. The semiconductor die have an active surface and a backside surface opposite to the active surface. The redistribution layer is located on the active surface of the semiconductor die and electrically connected to the semiconductor die. The antenna patterns are located over the backside surface of the semiconductor die. The die attach film is located in between the semiconductor die and the antenna patterns, wherein the die attach film includes a plurality of fillers, and an average height of the die attach film is substantially equal to an average diameter of the plurality of fillers. The insulating encapsulant is located in between the redistribution layer and the antenna patterns, wherein the insulating encapsulant encapsulates the semiconductor die and the die attach film.

In a magneto-electric dipole antenna, first to third substrates are stacked from top to bottom. A ground layer is disposed between the second and third substrates. Four sector patches and a first feed-out line are disposed on the first substrate. Four ground plates and first and second feed-in lines are disposed below the third substrate. Each of four vias penetrates the second and third substrates and the ground layer. A second feed-out line is disposed between the first and second substrates. Each of first and second feed-out probes penetrates the first to third substrates and the ground layer. The nth feed-out probe is connected to the nth feed-in line and the nth feed-out line, where 1≤n≤2. When two signals are fed to the feed-in lines, the signals are transmitted to the feed-out lines through the feed-out probes, and two electromagnetic waves are radiated.

According to an embodiment, a plasma processing system includes a plasma chamber, an RF source, a matching circuit, a balun, and a resonating antenna. The resonating antenna includes a first and a second spiral resonant antenna (SRA), each having an electrical length corresponding to a quarter of a wavelength of a frequency of a forward RF wave generated by the RF source. The first end of the first SRA is coupled to a first balanced terminal of the balun and the second end of the first SRA is open circuit. The first end of the second SRA is coupled to a second balanced terminal of the balun and the second end of the second SRA is open circuit. The first and the second SRA are arranged in a symmetrically nested configuration having a same center point.

The hexagonal dual-polarization high-selectivity frequency selective surface comprises a middle filtering layer and two magnetoelectric dipole antennas, and the section of the hexagonal dual-polarization high-selectivity frequency selective surface is hexagonal; the two magnetoelectric dipole antennas have the same structure and are symmetrically arranged relative to the middle filtering layer, the middle filtering layer is a middle metal layer with a central slot, the appearance of the middle metal layer is a regular hexagon, the central slot is hollowed out by a hexagon located in the center, and the middle metal layer is a rectangular metal layer. The six edge grooves extend outwards from the six edges of the hexagonal hollowed-out part respectively, and each edge groove faces one end point of the regular hexagon appearance of the middle metal layer. The middle filtering layer serves as a band-pass filter, electromagnetic waves penetrate through the middle filtering layer during resonance, suppression of low-frequency and high-frequency stop bands is achieved, and meanwhile the middle filtering layer serves as a common ground plane of the two magnetoelectric dipole antennas. According to the invention, the problems of high insertion loss in a wave-transparent window, insufficient out-of-band suppression, over-wide transition zone, poor angle stability and the like of the existing frequency selective surface can be solved.

Provided are a mounting member with an RFID tag comprising an RFID tag, the RFID communication sensitivity of which is improved, and a manufacturing method of the mounting member with an RFID tag. The mounting member with an RFID tag comprises a shaft shape unit 1-1, an RFID tag 1-3, a boost antenna 1-4, and a head unit 1-2. The shaft shape unit 1-1includes a shaft shape insert unit 1-11, and a base unit 1-12 formed by protruding one end part of the insert unit 1-11 in a width direction. The RFID tag 1-3 transmits and receives radio waves. The boost antenna 1-4 boosts the radio waves transmitted and received by the RFID tag 1-3. The head unit 1-2 molds at least a surface side of the base unit 1-12 in order to encapsulate the RFID tag 1-3 and the boost antenna 1-4.

A method for manufacturing an antenna for an RFID device includes providing a conductive material on a substrate and performing a first cutting process on the conductive material to define an initial antenna. Additional cutting processes are performed on the initial antenna to define a final antenna, with the first and any subsequent cutting processes being different. The subsequent cutting processes are capable of more finely defining regions of the antenna, such as in some embodiments when the first cutting process is a die cutting process and a second cutting process is a laser cutting process. While the subsequent cutting processes are capable of more finely defining regions of the antenna than the first cutting process. By combining multiple cutting processes, a final antenna equivalent to one made using only one or more of the subsequent cutting processes may be created at a lower cost.