471results about "Electrically short antennas" patented technology

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

Dipole antenna structures are disclosed. In certain embodiments, a dipole antenna structure includes a first dipole, a second dipole, a third dipole, and a fourth dipole aligned in parallel. The dipole antenna structure further includes a signal delay line structure electrically connected to a common signal feed. The dipoles are electrically connected to the common signal feed through the signal delay line structure.

Various embodiments relate to a radar system, including: a transmitter; a transmit antenna connected to the transmitter, wherein the transmit antenna is a circular polarized antenna; a receiver; a receive antenna connected to the receiver, wherein the receive antenna is a dual polarization antenna having a main lobe and ambiguity sidelobes; wherein the radar system is configured to: transmit a first and second radar signal with first and second circular polarizations in first and second modes; receive reflected first and second radar signals; process the received first and second radar signals to detect a target and to produce first and second mode target powers; comparing the first mode target power to the second mode target power to determine which lobe of the antenna in which the target is located.

A reconfigurable metasurface sub reflector comprises an array of cell units. Each sub unit is formed of two sub-unit cells formed with at least two conducting layers separated by a dielectric substrate. One conducting layer has, in each of the sub-unit cells, two parallel strips connected by a varactor and the other conducting layer serves as a ground layer. Setting the reverse biasing for each of the varactors controls the azimuth and elevation of reflection from the reconfigurable metasurface sub reflector.

Techniques for dynamic polarization selection by antenna bandwidth are disclosed herein. An example device includes a first antenna configured to transmit signals within a first bandwidth range, a second antenna configured to transmit signals within a second bandwidth range that is different from the first bandwidth range, one or more processors, and one or more memories communicatively coupled to the first antenna, the second antenna, and the one or more processors. The memories store instructions that, when executed by the one or more processors, cause the device to: transmit, by the first antenna, a first signal at a first frequency included within the first bandwidth range, determine that a second signal is to be transmitted at a second frequency that is different than the first frequency, determine that the second frequency is included within the second bandwidth range, and transmit the second signal using the second antenna.

According to at least one aspect, the present invention provides a vehicle-mounted antenna device comprising: a patch antenna that implements circular polarization; a ground portion in contact with a lower surface of the patch antenna; and a reflector spaced apart from the patch antenna and arranged to surround a side surface of the patch antenna.

An antenna includes a first substrate, a second substrate, a ground layer and a third substrate stacked from top to bottom, a driving patch disposed below the first substrate, and a first feed-in line and a second feed-in line disposed below the third substrate. The antenna further includes a first feed-out probe and a second feed-out probe, each of which extends from below the driving patch, and penetrates the second substrate, the ground layer and the third substrate. The first feed-out probe and the second feed-out probe respectively connects the first feed-in line and the second feed-in line to the driving patch, so as to transmit a first signal and a second signal received by the first feed-in line and the second feed-in line to the driving patch respectively through the first feed-out probe and the second feed-out probe for the driving patch to output an output electromagnetic wave.

Disclosed herein are implementations of systems and methods for providing antenna in package flexible components of wearable devices. A system can include a flexible component having a back plane layer disposed along a length of the flexible component. The system can include an antenna package having an insulating layer comprising a dielectric material disposed above the back plane layer and a circuitry layer disposed above at least a portion of the insulating layer and comprising one or more electrical components for processing antenna signals. The antenna package can include an antenna layer comprising an antenna pattern disposed above the circuitry layer and configured for wireless communication of the antenna signals using the wearable device. The back plane layer can be disposed between antenna layer and a surface of the flexible component configured to interface with a user wearing the wearable device.

A horizontally-polarized omnidirectional antenna, including: a body including: a host printed circuit board (PCB) including: a metal-flooded ground plane, windows, and an interconnect providing a radio frequency (RF) signal splitting off into 2*Z0 transmission lines, a plurality of antenna elements, corresponding to respective windows, including: an antenna PCB including an antenna slot having a pullback region with the host PCB therein without directly contacting the pullback region, the window in the antenna slot, loops of conducting strips at top and bottom sides of the antenna PCB, slightly overlapping to form capacitive elements at overlap regions, a pair of input solder joints at respective input conducting strips on the top of the antenna PCB, on opposite sides of the window, a transmission feed solder joint directly between the pair of input solder joints across the window, connected to a Z0 feed line, and an RF connector receiving an antenna power supply.

A unit cell for an ultra-dense multiband antenna comprises a reflector; a first frequency dipole disposed on the reflector, the first frequency dipole having four first frequency dipole arms; a plurality of second frequency dipoles disposed on the reflector, each of second frequency dipoles having four second frequency dipole arms; and a plurality of third frequency radiators disposed on the reflector, each third frequency radiator having a patch antenna element that is disposed above the reflector and a cavity cup frame disposed below the reflector, wherein each of the first frequency dipole arms is disposed above a second frequency dipole, and wherein each of the second frequency dipole arms is disposed above a third frequency radiator.

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

Disclosed is a novel dipole antenna design having symmetric poles, each pole having a half circle resonator and an oval resonator that are electrically connected by a straight choke section; the dipole shape permits a wideband dipole response with a transition frequency between a lower and upper frequency band. A cross bar and capacitively-coupled stubs tune at the transition frequency to create a continuous impedance and gain-bandwidth. The dipole and the crossbar and stubs are formed on opposite surface or sides of a substate. Data demonstrates the novel dipole antenna can exceed the gain-bandwidth of the state-of-the-art bowtie by approximately 5 times, that is, its gain-bandwidth is 10:1 versus the standard bowtie gain-bandwidth of 2:1 at broadside.

An antenna module includes an antenna unit and a first isolation unit. The antenna unit includes a first antenna and a second antenna arranged at an interval. The first isolation unit is arranged between the first antenna and the second antenna and configured to convert a transmission form of an electromagnetic wave coupled into the first isolation unit from the first antenna and / or the second antenna into an evanescent wave, to isolate a target signal between the first antenna and the second antenna.

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

A sensor element is for testing a planar data carrier that has a spin resonance feature. The sensor element includes: a magnetic core having an air gap into which the planar data carrier can be inserted for testing purposes; a polarization device for generating a static magnetic flux in the air gap; and a resonator device for exciting the spin resonance feature of the data carrier to be tested in the air gap. The resonator device has a stripline resonator and a supply structure for the stripline resonator and is designed to generate a high-frequency field with circular polarization owing to the geometry of the stripline resonator and / or the geometry of the supply structure.

This application relates to an antenna element, including a feed section, a connecting section, and two radiating sections. The connecting section connects the feed section and the radiating sections, and the feed section feeds signals to the two radiating sections respectively. The radiating sections are constructed as metal-filled plate-like structures, and the two radiating sections are spaced apart from each other. Each radiating section includes a curved first edge portion, the radiation direction of which is opposite to the connecting section, and the length L1 of the first edge portion satisfies the condition: 1 / 8λ≤L1≤3 / 8λ; where λ is the wavelength of the electromagnetic wave signal transmitted by the antenna element in the medium. This application's antenna element, by having two radiating sections arranged opposite each other, and each forming a curved first edge portion to create a main radiating segment, reduces the antenna aperture and thereby achieves a wider radiation angle, while simultaneously possessing higher accuracy and sensitivity. This application also relates to an antenna element manufacturing method, an antenna array, a radar, and a terminal.

A solder connection (1) between a coaxial cable (2) and a printed circuit board arrangement (3). The coaxial cable (2) comprises an inner conductor (4), an outer conductor (6) and a dielectric (5) arranged in between. The printed circuit board arrangement (3) comprises an outer conductor contact area (8) and an inner conductor contact area (9). The outer conductor contact area (8) comprises an outer conductor receiving opening (12). The coaxial cable (2) runs at an angle to the printed circuit board arrangement (3), wherein a part of the outer conductor (6) is arranged in the outer conductor receiving opening (12) and wherein the inner conductor (4) is arranged at the inner conductor contact area (9). A first solder joint (10) connects the outer conductor (6) to the outer conductor contact area (8). A second solder joint (11) connects the inner conductor (4) to the inner conductor contact area (9).

To provide an electronic clock which, when composing an electronic clock differing in case size, enables prevention of increase in the cost thereof and furthermore enables improvement of the reception performance thereof.SOLUTION: The electronic clock comprises: a case; an indicator; a nameplate; a drive mechanism for driving the indicator; a bottom plate to which the drive mechanism is attached; an antenna which is located between the nameplate and the bottom plate in a lateral view when viewing from a direction parallel to the surface of the nameplate; and a circuit board. The antenna includes a tabular radiation electrode, a tabular ground electrode, and a dielectric substance which is located between the radiation electrode and the ground electrode in a lateral view. The circuit board is electrically conducted to the radiation electrode via a power feeding member, and the radiation electrode comprises a protrusion that protrudes to the outside of the bottom plate in a plan view when viewing from a direction orthogonal to the surface of the nameplate.SELECTED DRAWING: Figure 2

This document describes a multimode high-isolation antenna system (102) and associated methods and systems. The described antenna system is implemented on a generally-circular printed circuit board (110) and can be used for wideband and ultra-wideband applications. The multimode high-isolation antenna system includes two orthogonal antennas (104, 106) separated by a decoupling structure (108). This arrangement provides high isolation between the antennas and enables five unique resonant modes of operation for the multimode high-isolation antenna system.

Antenna elements include a metallic square ring patch and a metallic square ring slot to transmit or receive radio frequency (RF) signals. The antenna elements use several dielectric layers that are separated by a low-dielectric foam layer upon which the square ring patch is positioned. The antenna elements may be arranged into an antenna array that is tunable to collectively generate or receive RF signals to and from airborne and mobile vehicles with an agile, electronically scanning antenna array beam, with no moving parts. The antenna array includes a top section to communicate RF signals; a bottom section to generate a desired RF signal; and a foam layer between the top and bottom sections to separate the ring patch from the ring slot. High isolation between the top section and the bottom section allows the antenna elements to be used in higher gain and high-power arrays without adverse feedback issues.

This application provides an electronic device, including an antenna. The antenna uses a conductive part of a side frame of the electronic device as a first radiator. A second radiator is spaced from a side of the first radiator. A new-type antenna structure is formed by using the first radiator and the second radiator that are disposed close to each other. The first radiator and the second radiator are configured to generate a composite antenna mode, and have relatively low directivity factors, so that the electronic device has good communication performance in all directions.

An electronic device comprises an antenna that has an annular shape in a plan view from a first direction and has at least an outer peripheral edge and an inner peripheral edge, and a device case that accommodates the antenna inside. The antenna comprises at least one latch that is integral to the inner peripheral edge. The device case has a catch at a position corresponding to the latch of the antenna.

This electronic component module that is attached using a hot melt adhesive agent to a member provided with a conductor pattern comprises: a first base; a coupling electrode that is provided on a first surface of the first base for electromagnetic coupling with the conductor pattern; and a second base that is provided on the first surface of the first base to cover the coupling electrode. The thermal resistance between the coupling electrode and the second base is smaller than the thermal resistance between the coupling electrode and the first base.

The present disclosure provides a dual-polarized antenna and an electronic device, and belongs to the technical field of communication. The dual-polarized antenna comprises a radiation structure, a first feed line, a second feed line, a first phase shift structure, a second phase shift structure and a third phase shift structure. The first phase shift structure is electrically connected with the radiation structure through the first feed line, the second phase shift structure is electrically connected with the radiation structure through the second feed line, and the feeding directions of the first feed line and the second feed line are different. The first phase shift structure and the second phase shift structure are also electrically connected with the third phase shift structure. The first phase shift structure and the second phase shift structure are located in different layers from the third phase shift structure, and the maximum phase shift degrees of the first phase shift structure and the second phase shift structure are both less than the maximum phase shift degree of the third phase shift structure.

To widen a band of a patch antenna.SOLUTION: An antenna device comprises: a metal layer which forms an antenna element in a prescribed planar shape; and a ground which is arranged on the lower side of the metal layer. The metal layer comprises: a first metal which forms a planar shape; a notch which is formed on the first metal and notches a portion of an edge of the planar shape; a second metal being an electromagnetic field coupling element which is arranged with a prescribed interval from the first metal on the inner side of the notch; and a power supply line which is formed on the outer side of the planar shape and is connected to the second metal through an opening portion of the notch. The second metal has the width in the opening portion smaller than the maximum width on the inner portion of the notch.SELECTED DRAWING: Figure 1

An antenna assembly, an antenna system, and a vehicle are provided in the disclosure. The antenna assembly includes a sunroof and an antenna combination. The antenna combination is disposed at an end of the sunroof. The antenna combination includes multiple antenna elements arranged along an edge of the sunroof. When the antenna assembly provided in the disclosure is applied to a vehicle, exterior design of the vehicle may not be adversely affected.

The present disclosure relates to an antenna radiator including multiple layers and an electronic device including the antenna radiator. Disclosed is an electronic device including: a housing; a first plate located on a front surface of the housing; a second plate located on a rear surface of the housing; an antenna radiator interposed between the first and second plates; and wireless communication circuitry connected to the antenna radiator and processing signals in a specific frequency band. The antenna radiator includes at least one conductive fabric layer having a resistive characteristic suitable for transmitting or receiving signals in the specific frequency band, and the at least one conductive fabric layer includes fabric plated with at least one metal.

In some implementations, the disclosed techniques may include tuning a first antenna element to a first tuning state during an acquisition mode for establishing communication channels with satellites. The first tuning state can configure the first antenna element to receive signals in a first frequency range. The techniques may include establishing the communication channels using the first antenna element in the first tuning state during the acquisition mode. The techniques may include transitioning from the acquisition mode to a tracking mode. The techniques may include changing the tuning state of the first antenna element. The techniques may include determining a location of the mobile device during the tracking mode: (1) using the first antenna element and a second antenna element of the mobile device or (2) not using the first antenna element and using the second antenna element that is configured to receive signals in a second frequency range.

To provide an antenna element that is suitable for transmitting and receiving circularly polarized radio waves while suppressing material costs.SOLUTION: An antenna element 30 comprises an upper conductor 40 having a line symmetrical outer circumferential chape, and at least a pair of legs 50. Recesses 44 corresponding to the legs 50 are provided to the upper conductor 40. Each of the legs 50 projects toward a first or second bearing, the first and second bearings being opposite to each other as seen from the center of the upper conductor 40 when the upper conductor 40 is seen along a vertical direction and extends downward in the vertical direction. Meanwhile, each of the recesses 44 is juxtaposed with the legs 50 corresponding in a direction orthogonal to a direction defined by the first and second bearings and is recessed in the second or first bearing. Thus, according to the present invention, it is possible to obtain an antenna element suitable for transmitting and receiving circularly polarized radio waves, and to obtain an antenna device having a good axial ratio characteristic.SELECTED DRAWING: Figure 4

An antenna assembly includes a substrate stack 105 comprising a magnetodielectric material, at least one patch radiating element 102 on an upper surface of the substrate stack 105, and a dielectric cover 200 including a gradient lens 204 disposed over the substrate stack 105. The gradient lens 204 includes a first lens portion having a first dielectric constant, DkL1, and a second lens portion having a second dielectric constant, DkL2, different from the first dielectric constant, DkL1.