A low profile array (LPA) includes an antenna element array layer having at least one Faraday wall, and a beamformer circuit layer coupled to the antenna element array layer. The beamformer circuit layer has at least one Faraday wall. The Faraday walls extends between ground planes associated with at least one of the antenna element array layer and the beamformer circuit layer.

Embodiments of the present disclosure provide example antennas, example microwave devices, and example communications systems. One example antenna includes an antenna body and a filter component. The antenna body includes an antenna aperture and an optical axis. The antenna body is configured to send and receive a radio frequency signal that passes through the antenna aperture. The filter component is located at the antenna aperture and is disposed perpendicular to the optical axis, where the filter component is configured to filter an interference signal in the radio frequency signal. The filter component includes a filter layer and a support component, where the filter layer is formed by a lossy dielectric, where the support component is configured to support the filter layer, and where the filter layer forms a spatial structure similar to a shutter.

By performing continuous matching in an entire frequency band from 600 MHz to 6 GHz by one antenna device, communication with a plurality of types of communication devices having different used frequency bands becomes possible without switching the antenna device.

In the antenna device, a first insulating plate 40, a capacitive coupling portion 45a of a tuning plate 45, a radio wave absorber 50, a grounding portion 45b of the tuning plate 45 folded back to the back side of the radio wave absorber 50, and a tuning coated plate 55 provided with a metallic plated film formed on the surface thereof are sequentially stacked below an antenna element 30 having a shape obtained by removing an arched portion from a copper circular plate.

Power is supplied from a center conductor 64 of a semi-rigid signal input member 61 to a power feeding unit 33 provided in a part of a circular outer edge 32 of the antenna element 30. An external conductor 62 of the signal input member 61 is held between conductive cushions 80a and 80b that are elastically deformable. A grounding plate 85 is conductive with the external conductor 62, to ground the grounding portion 45b and the tuning coated plate 55.

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.

A radome-reflector assembly includes a generally domed reflector having a peripheral rim and a radome assembly. The radome assembly includes: an annular ring having a front wall and a side wall: a disk that fits within the ring: and an RF-compliant absorber, wherein the rim of the reflector fits within the side wall. The radome assembly further comprises a clip that engages the rim and the ring to secure the reflector to the radome assembly.

Described herein is a low profile radiator (LPR) manufactured using additive manufacturing technology (AMT). Such an AMT radiator is suitable for use in an array antenna which may be fabricated using AMT manufacturing processes.

An electronic device is provided. The electronic device includes a housing that includes a front surface, a rear surface facing away from the front surface, and a side surface surrounding a space between the front surface and the rear surface, wherein the front surface includes a dielectric substance having a first permittivity and the rear surface includes a dielectric substance having a second permittivity, an antenna array that is positioned adjacent to the side surface, radiates a millimeter wave signal, the antenna array including at least one antenna element, a communication circuit that is electrically connected with the antenna array and communicates by using the millimeter wave signal, and an electrical element that is positioned to be spaced from the antenna array by a specified distance such that a radiation pattern of the millimeter wave signal radiated from the antenna array has a directivity toward the side surface.

A lensed multi-beam base station antenna may include a plurality of linear arrays of radiating elements, a plurality of reflectors, a sidelobe suppressor, and a lens. Each array may include a plurality of radiating elements (e.g., two or more radiating elements) that extends forwardly from a planar section of a respective reflector. The sidelobe suppressor may comprise radiofrequency (RF) absorber material that absorbs energy that is emitted by a first of the arrays and that is directed toward a reflector underneath a second of the arrays. The sidelobe suppressor may comprise a RF choke that reduces the RF energy emitted by a first of the arrays that is directed toward a reflector underneath a second of the arrays.

An antenna device is mounted on a base plate. The antenna device includes an antenna element, a base, and a magnetic body. The antenna element is mounted on the base. The magnetic body is disposed between the base and the base plate.

A method and apparatus for RF ripple correction in an antenna aperture are described. In one embodiment, the antenna comprises: an array of antenna elements having liquid crystal (LC); drive circuitry coupled to the array and having a plurality of drivers, each driver of the plurality of drivers coupled to an antenna element of the array and operable to apply a drive voltage to the antenna element; and radio-frequency (RF) ripple correction logic coupled to the drive circuitry to adjust drive voltages to compensate for ripple.