Abstract: An antenna device is disclosed for implementing spatial-polarization separation of beams using a quad-polarized antenna module array. The antenna device including a quad-polarized antenna module array including first and second quad-polarized antenna modules in which signal paths of radiating elements having the same polarization direction are coupled, and configured to radiate first and second beams having different polarizations, and a polarization/separation beamforming module configured to set phases between signals to be different from each other so that the first beam and the second beam are spatially separated.

Abstract: An antenna device according to an embodiment includes a dielectric layer including a high transmittance area and a low transmittance area, and an antenna unit disposed on the dielectric layer. The antenna unit includes a radiator disposed on the high transmittance area of the dielectric layer and having a mesh structure, a signal pad disposed on the low transmittance area of the dielectric layer and having a solid pattern structure, and an impedance matching pattern connecting the radiator and the signal pad on the low transmittance area of the dielectric layer. The impedance matching pattern has a larger width than that of the signal pad and has a solid pattern structure.

Abstract: This elementary antenna includes a cavity delimited by front and rear faces and side walls, the front face being provided with first and second slots arranged in a cross, so that, when the cavity operates in a TE210 mode, a wave polarized perpendicularly to the first slot is emitted and when the cavity operates in a TE120 mode, a wave polarized perpendicularly to the second slot is emitted. This elementary antenna is characterized in that the rear face is brought to a reference electric potential, and in that the elementary antenna includes an excitation device, such as a metallized via, capable of exciting the front face through the cavity, the excitation device exciting the front face at a plurality of excitation points, distributed over the front face and presenting a common predefined impedance.

Abstract: A system including a plurality of circuits in a first radio frequency (RF) device which are configured to control a plurality of reflector devices based on a set of criteria. The controlled plurality of reflector devices transmit a plurality of RF signals in a specified direction and a specified location of a second RF device within transmission range of the controlled plurality of reflector devices. The plurality of RF signals are transmitted in the specified direction and the specified location of a second RF device based on a request for signal cancellation. The request for the signal cancellation is based on a noise from the second RF device and the plurality of RF signals are cancelled in the specified direction and the specified location of the second RF device.

Abstract: The present invention provides a hexagonal frustum deployable unit and the deployable mechanism formed by the same, which includes hexagonal frustum deployable units, unit connecting rods and support frames, 3N2+3N+1 hexagonal frustum deployable units are combined into a closely connected deployable mechanism through unit connecting rods and support frames; the present invention combines hexagonal frustum deployable units array into deployable mechanisms of any aperture size, which has advantages such as high rigidity, high retraction rate, high support performance and adjustable aperture size, which makes space deployable antenna mechanism safer, more efficient and convenient during operation process and solves problems of weak signal transmission or reception, small data capacity and low communication rate of traditional antennas.

Abstract: An antenna includes at least one feed line including a first feed line, and a plurality of first patch units serially connected to the first feed line in an extending direction of the first feed line. The first feed line and/or the plurality of first patch units each have a mesh structure, and the mesh structure is composed of a plurality of conductive lines. Of the plurality of conductive lines, a distance between two conductive lines that are adjacent and do not intersect is greater than or equal to a maximum width of any conductive line, and is less than or equal to a minimum width of any feed line.

Abstract: Multi-band antenna arrays and methods of use are provided herein. An example device includes vertical surfaces arranged into a tubular configuration, where each of the vertical surfaces comprising antenna arrays is aligned along the vertical surfaces. The antenna elements are arrayed through a feed network in such a way that antenna gain is increased while elevation beam-width is reduced. The device also includes two or more radios connected to the antenna arrays on the vertical surfaces via the feed network.

Abstract: An antenna system for satellite applications is provide, the antenna system comprising an antenna array and a feed structure, and the antenna array is a passive antenna array configured to have a first state and a second state, the second state being a first deployed state. The feed structure is configured to provide a linearly polarized incident field for the antenna array in the first deployed state. The antenna array comprises a plurality of array elements, and the plurality of array elements forms a polarization conversion surface configured for converting the linearly polarized incident field to a reflected/transmitted circular polarized field. The antenna array is configured so that the radiation pattern of the reflected/transmitted circular polarized field corresponds to a predetermined radiation pattern and an array element geometry and an array element position of each of the plurality array elements are configured to provide the predetermined radiation pattern.

Abstract: Disclosed is an antenna device having a contact structure, and the antenna device includes: a radiator formed on a carrier; a printed circuit board having a power supply module configured to supply a power supply signal to the radiator; and a first contact structure configured to electrically connect the radiator and the printed circuit board, wherein the first contact structure includes: a conductive gasket formed with a through hole therein, installed on the radiator to be fixed onto the radiator; a torsion suppression member inserted into the conductive gasket through the through hole to suppress the torsion of the conductive gasket; and a separation suppression member extending from the radiator along an outer wall of one side of the conductive gasket in a height direction of the conductive gasket to suppress the separation of the conductive gasket.

Abstract: An internal conductor device for a waveguide radiator, in particular for a waveguide radiator has at least one slotted waveguide, at least one support rail, at least one dielectric unit that is arranged on the at least one support rail and comprises at least one dielectric element, and has at least one internal conductor that is arranged on the at least one dielectric unit, wherein the at least one internal conductor is fixed at least substantially mechanically on the at least one dielectric element and/or that the at least one dielectric element is fixed at least substantially mechanically on the at least one support rail.

Abstract: An antenna module includes feeding elements arranged adjacent to each other and filters connected to the respective feeding elements. Each of the filters includes a plurality of resonant lines that is not connected to each other. The filters are arranged between the feeding elements so as to cross a virtual line equidistant from the feeding elements when the antenna module is viewed in plan from the normal direction.

Abstract: A self-deployable antenna and/or antenna array that is made up of one or more antenna elements. Each of the antenna elements has a structural base that supports portions of the antenna and can be positioned between a stored configuration for compaction and a deployed configuration for transmitting. The antenna elements and structural base can be part of a base substrate that provides a base support for the antenna and/or antenna array to be compacted and deployed.

Abstract: An antenna device mounted on a base plate includes an antenna element. The antenna device further includes a base composed of metal, the base being mounted on the antenna device with the antenna element. The antenna device further includes a magnetic body configured to be disposed between the base and the base plate.

Abstract: Disclosed herein are antenna boards, antenna modules, and communication devices. For example, in some embodiments, an antenna board may include: an antenna feed substrate including an antenna feed structure, wherein the antenna feed substrate includes a ground plane, the antenna feed structure includes a first portion perpendicular to the ground plane and a second portion parallel to the ground plane, and the first portion is electrically coupled between the second portion and the first portion; and a millimeter wave antenna patch.

Abstract: A reconfigurable, dual-band, MIMO antenna apparatus, a planar MIMO antenna system utilizing the antenna apparatus, and a method of transmitting and receiving a signal by the antenna apparatus are provided. The apparatus includes a dielectric planar substrate, a first element, a second element, two varactor diodes per element, and a microstrip feed-line. The first element and the second element each have slotted concentric annular rings. The second element is separated on the dielectric planar substrate from the first element, but is coplanar on the dielectric planar substrate with the first element. The two varactor diodes are placed in series with biasing circuitry, the biasing circuitry including RF chokes and current-limiting resistors. The microstrip feed-line feeds both antenna elements. The dual-band antenna elements can each be independently and concurrently tunable to two signal frequencies bands.

Abstract: A slot array antenna includes a waveguide and a horn. The waveguide has a first surface including multiple slots arranged along a longitudinal direction of the first surface to radiate radio waves. The width of the first surface in the lateral direction is greater than half of a wavelength of the radio waves. The horn, fixedly attached to the waveguide, enlarges towards a radiation direction of the radio waves. The horn has upper and lower portions bent inwards twice with respect to a lateral direction of the first surface to form first and second narrow openings. An opening width of the first narrow opening is less than the width of the first surface. An opening width of the second narrow opening is less than or equal to two fifth of the wavelength. Thus, a side lobe generated due to horizontal polarization of the radio waves is suppressed.

Abstract: A reconfigurable, dual-band, MIMO antenna apparatus, a planar MIMO antenna system utilizing the antenna apparatus, and a method of transmitting and receiving a signal by the antenna apparatus are provided. The apparatus includes a dielectric planar substrate, a first element, a second element, two varactor diodes per element, and a microstrip feed-line. The first element and the second element each have slotted concentric annular rings. The second element is separated on the dielectric planar substrate from the first element, but is coplanar on the dielectric planar substrate with the first element. The two varactor diodes are placed in series with biasing circuitry, the biasing circuitry including RF chokes and current-limiting resistors. The microstrip feed-line feeds both antenna elements. The dual-band antenna elements can each be independently and concurrently tunable to two signal frequencies bands.

Abstract: A reconfigurable, dual-band, MIMO antenna apparatus, a planar MIMO antenna system utilizing the antenna apparatus, and a method of transmitting and receiving a signal by the antenna apparatus are provided. The apparatus includes a dielectric planar substrate, a first element, a second element, two varactor diodes per element, and a microstrip feed-line. The first element and the second element each have slotted concentric annular rings. The second element is separated on the dielectric planar substrate from the first element, but is coplanar on the dielectric planar substrate with the first element. The two varactor diodes are placed in series with biasing circuitry, the biasing circuitry including RF chokes and current-limiting resistors. The microstrip feed-line feeds both antenna elements. The dual-band antenna elements can each be independently and concurrently tunable to two signal frequencies bands.

Abstract: Embodiments of this application provide a radiation apparatus and a multi-band array antenna, and relate to the field of antenna technologies. The radiation apparatus includes a radiation module, a first conductor balun, and a second conductor balun. The first conductor balun is mechanically connected to the second conductor balun under the radiation module. The radiation module includes a first radiation unit and a second radiation unit in a +45° polarization direction, and a third radiation unit and a fourth radiation unit in a ?45° polarization direction. The first conductor balun is configured to feed a first differential signal to the first radiation unit and the second radiation unit. The second conductor balun is configured to feed a second differential signal to the third radiation unit and the fourth radiation unit. The first conductor balun and the second conductor balun are disposed in the same plane.

Abstract: Apparatus having at least one reflective surface configured to reflect electromagnetic waves, wherein a reflective response of at least one portion of the reflective surface with respect to the electromagnetic waves is electronically controllable, wherein the apparatus is configured to at least temporarily control the reflective response of the at least one portion of the reflective surface.