Abstract: A method for tuning an antenna may include depositing multiple portions of an antenna structure onto a substrate. The method may further include electrically coupling each of the portions of the antenna structure. The method may also include severing an electrical connection between two of the portions of the antenna structure to tune the antenna structure for use with a transmission device.

Abstract: A radar sensor. The radar sensor includes a high-frequency component situated on a circuit board and a waveguide structure, which is connected via a coupling structure to the high-frequency component. The waveguide structure is formed in a mold, which is injection molded to a part of the circuit board supporting the high-frequency component.

Abstract: An antenna structure includes a radiator element configured for operation at a first microwave frequency range and at a second microwave frequency range that is higher than the first microwave frequency range, and a reflector including the radiator element attached thereto. The reflector includes an enclosure that houses the radiator element and a radiating aperture. The antenna structure further includes a radome assembly adjacent the radiating aperture. The radome assembly includes a flexible radome having a thickness that is less than a wavelength corresponding to the first or second microwave frequency ranges, and a tensioning member that extends along a perimeter of the flexible radome and maintains tension in a surface of the flexible radome.

Abstract: An antenna is described. The antenna includes a first plurality of first elements. Each of the first elements is dual polarized and configured to support a first set of bands and a second set of bands that is mutually exclusive from the first set of bands. The antenna also includes a second plurality of second elements. Each of the second elements is dual polarized and configured to support the second set of bands. The second plurality of second elements is interleaved with the first plurality of first elements.

Abstract: A multiport planar antenna system with digital reconfigurability to adjust a beam-steering function of the system is described herein. A substrate is provided and a grid of parasitic elements is printed on a surface of the substrate. One or more driven, radiating elements such as monopole or dipole antennas are printed on the substrate proximate the parasitic elements. Switching elements between adjacent parasitic elements are then configured to steer the radiation direction in a particular direction in the azimuth plane. The small form factor of the planar antenna system can be used in a multiple-input, multiple-output (MIMO) application used by fifth generation (5G) devices such as mobile phones, internet of things (IoT) devices, and vehicles.

Abstract: The present disclosure relates to a plug-in antenna device arranged to be received in a waveguide section. The plug-in antenna device includes one or more dielectric elements arranged in series and spaced apart by connecting members, a top-most dielectric element being arranged as antenna element. When the plug-in antenna device is received in the waveguide section, the dielectric elements are arranged electromagnetically coupled, whereby a radio frequency signal included in a radio frequency band passing to or from the antenna element via the dielectric elements is arranged to be electromagnetically filtered.

Abstract: A reflectarray antenna system includes an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band. The system also includes a reflector having a reflectarray. The reflectarray includes a plurality of reflectarray elements, where each of the reflectarray elements includes a dipole element. The dipole element of at least a portion of the plurality of reflectarray elements comprises a crossed-dipole portion and a looped-dipole portion. The plurality of reflectarray elements can be configured to selectively phase-delay the wireless signal to provide the wireless signal as a coherent beam.

Abstract: An integrated heatsink and antenna structure that is suitable for inclusion in small and midsized computing devices. The integrated heatsink and antenna structure may include heatsink portions and radio frequency antenna portions. The heatsink portions may provide a path for dissipating thermal energy or heat generated by the components in the device (e.g., printed circuit boards, processors, voltage amplifiers, etc.), and the radio frequency (RF) antenna portions may allow the device to send and receive wireless communications. The integrated heatsink and antenna structure may be formed so that radio frequency antenna portions operate to improve the thermal performance of the heatsink portions and/or so that the heatsink portions operate to improve the antenna properties (e.g., radiation patterns, radiation efficiency, bandwidth, input impedance, polarization, directivity, gain, beam-width, voltage standing wave ratio, etc.) of the radio frequency antenna portions.

Abstract: Antenna feed chains and methods are disclosed. An antenna feed chain, include a feed horn having a first cross-polarization performance over a solid angle of interest and a frequency band of interest and a polarizer having a second cross-polarization performance over the solid angle of interest and the frequency band of interest. The polarizer is coupled to the feed horn. The first cross-polarization performance of the feed horn compensates for the second cross-polarization performance of the polarizer over the solid angle of interest and the frequency band of interest.

Abstract: The present disclosure relates to an antenna mounting device and a base station antenna system. The antenna mounting device includes a hinge device and an adjustment arm. The hinge device is configured to be mounted to a pole by a clamp and configured to pivotally connect a base station antenna arrangement. The adjustment arm is configured to be mounted to the pole by a clamp and configured to connect the base station antenna arrangement. The connection of the hinge device with the base station antenna arrangement is located in a middle region of a longitudinal extension of the base station antenna arrangement [having a longitudinal extension] of a maximum of ? of the longitudinal extension of the base station antenna arrangement. A connection of the adjustment arm with the base station antenna arrangement is located in one of two end regions of the base station antenna arrangement.

Abstract: The disclosed invention provides a distributed directional aperture (DDA) system that is installed in a vertical lift aircraft that comprises a fuselage and a rotor system including rotary wings rotatably coupled to the fuselage. The DDA system provides capability to receive and/or transmit signals in one or more frequency bands, and provides communications, signals intelligence (SIGNINT), positional sensing, jamming, and offensive cyber on the vertical lift aircraft. The DDA system of the vertical lift aircraft includes a sensor and emitter array subsystem that includes a plurality of sensors and emitters distributed in the rotary wings, a beamformer subsystem that processes the sensor signals and emitter signals, and a telemetry subsystem that conveys signals between the sensor and emitter array subsystem and the beamformer subsystem.

Abstract: An apparatus is disclosed herein for a cylindrically fed antenna and method for using the same. In one embodiment, the antenna comprises an antenna feed to input a cylindrical feed wave and a tunable slotted array coupled to the antenna feed.

Abstract: Provided is a dual-polarized antenna. The dual-polarized antenna includes a horizontal radiating unit and a vertical radiating unit. The horizontal radiating unit includes a power divider and a Vivaldi oscillator array. The Vivaldi oscillator array includes multiple Vivaldi oscillator units uniformly distributed in a circumferential direction of the Vivaldi oscillator array. The power divider includes multiple output ports in one-to-one correspondence with the multiple Vivaldi oscillator units. The multiple output ports of the power divider are coupled to the multiple Vivaldi oscillator units in a one-to-one correspondence. The vertical radiating unit is disposed on one side of the horizontal radiating unit and includes a vertically-polarized oscillator.

Abstract: An antenna for a foldable electronic device which functions equally well in both folded and unfolded states includes a rotating shaft and a housing. The overall housing is made of metallic material and includes a first housing and a second housing. The first housing connects to the second housing through the rotating shaft. The housing further defines at least one group of slots to form at least one slot antenna. The at least one slot antenna crosses the rotating shaft and extends to the first housing and/or the second housing. By setting at least one slot antenna to correspond to the rotating shaft, the foldable electronic device achieves high radiation performance whether the first and second housing are folded or unfolded.

Abstract: There is disclosed an antenna system comprising: i) first and second antennas, the second antenna being disposed laterally from the first along a longitudinal axis, and ii) an isolation structure disposed between the first and second antennas. The isolation structure comprises a first resonator element having a first arm with upper and lower ends, the first arm connected to ground at its lower end, and a lateral second arm connected to the upper end of the first arm. At least a portion of the first resonator element is disposed adjacent to a portion of the first antenna such that the first resonator element is strongly coupled to the first antenna.

Abstract: Embodiments of the present disclosure provide methods, apparatuses, devices and systems related to the implementation of a multi-layer printed circuit board (PCB) radio-frequency antenna featuring, a printed radiating element coupled to an absorbing element embedded in the PCB. The embedded element is configured within the PCB layers to prevent out-of-phase reflections to the bore-sight direction.

Abstract: The present invention comprises an antenna system consisting of two generally co-axial near field antennas, one mounted around the circumference of a human head, the other mounted on the body. The preferred embodiment discloses the dimensions necessary to create a viable near field communications (NFC) channel with existing commercial off-the-shelf (COTS) NFC circuits to create a secure wireless link between the head and shoulders.

Abstract: An antenna assembly for receiving television signals on both very high frequency (VHF) bands and ultra high frequency (UHF) bands, the antenna assembly including: a main section including an elongated boom, at least one active element coupled to the boom, and at least one passive element coupled to the boom; a VHF section including a VHF boom configured to be coupled to a first longitudinal end of the boom and at least one active element coupled to the VHF boom; and a UHF section including a UHF boom configured to be coupled to a second longitudinal end of the boom opposite the first longitudinal end and a plurality of passive elements coupled to the UHF boom.

Abstract: A parabolic antenna includes a main disc, a transmitting device, and a reflecting member. The main disc has a main surface that is arc-shaped. The transmitting device is disposed on the main disc and includes a transmitter and a reflector. The transmitter corresponds to the reflector. The reflector has a reflecting surface that is arc-shaped and corresponds to the main surface of the main disc. The reflecting member is detachably engaged with the reflecting surface of the reflector and corresponds to the transmitter. By engaging the reflecting member with the reflecting surface of the reflector or detaching the reflecting member from the reflecting surface, the parabolic antenna could form various configurations and provide different reflecting performances.

Abstract: A remote antenna unit including at least one antenna configured to enable conversion between a digital signal and a radio signal; an external digital interface for providing the digital signal; and means for adapting performance of the antenna in dependence upon measurement of at least one parameter.