Abstract: The present invention relates to an antenna unit, and more particularly, to an antenna unit comprising a metal plate and an antenna filter unit. The present disclosure provides an antenna unit including a metal plate into which a stand-off head is inserted. The present disclosure provides an antenna unit including a metal plate having formed therein a groove for covering a circuit of a calibration network. The present disclosure provides an antenna unit including a filter unit having formed therein a groove for covering a circuit of a calibration network. The present disclosure provides an antenna unit comprising plastic rivets for coupling an antenna, a metal plate, and a calibration network. The present disclosure provides an antenna unit including a metal plate having a transmission line formed thereon.

Abstract: An antenna includes a first feed layer, a second feed layer and a radiation structure layer stacked; the first feed layer includes a first dielectric substrate and a micro-strip line structure stacked; multiple first conductive patches in a first conductive structure are electrically connected to a reference ground structure through an electrical connection structure on the second dielectric substrate; the reference ground structure is provided with a first slot, multiple first conductive patches are symmetrically arranged with respect to a first centerline, and the first centerline is a centerline of the first slot extending along the second direction; the radiation structure layer includes a third dielectric substrate and a second conductive structure stacked, multiple second conductive patches in the second conductive structure are symmetrically disposed with respect to the first centerline, any one of the second conductive patches is provided with at least one second slot.

Abstract: A microwave helix antenna with a coaxial interface having controlled transmission properties is disclosed. In one aspect, dielectric beads surround a center conductor and are varied in number, thickness and spacing to achieve desired transmission properties.

Abstract: A wireless communication system comprising one or more cross polarized antenna assemblies with optimized propagation delay that form part of an antenna module having two dominant perpendicular polarizations. Isolation or crosstalk in each antenna module is minimized through an implementation of a sectorized planar isolation and correlation enhancer in the form of a ground plane opening structure.

Abstract: A spar buoy for very low frequency (VLF) or low frequency (LF) transmission including a first portion of the spar buoy extending above a mean water line including a conductive structure including a coaxial feed, and an antenna coupled to the coaxial feed and extending above the conductive structure, and a second portion of the spar buoy below the mean water line including a transmitter coupled to the coaxial feed, an energy storage subsystem coupled to the transmitter and an electric power generation subsystem coupled to the energy storage subsystem.

Abstract: A wireless transceiver for a wireless communication network has an offset Gregorian antenna arrangement comprising a primary reflector dish, an electrically conductive reflector member comprising a secondary reflector and a conductive support wall, a planar array of antenna elements arranged as a feed for transmitting radio frequency signals to the secondary reflector and/or for receiving radio frequency signals from the secondary reflector and a conductive support block configured to support the planar array of antenna elements. The conductive support wall is connected directly to the conductive support block, and the conductive support wall is configured to be substantially perpendicular to the planar array of antenna elements.

Abstract: Antenna elements are disclosed herein that include a metallic square ring patch and a metallic square ring slot to transmit or receive radio frequency (RF) signals. The disclosed antenna elements use several dielectric layers that are separated by two low-dielectric foam layers. The square ring patch is located above an upper foam layer, and a square ring slot is located between the upper foam layer and a bottom foam layer. Electrical feed lines are used to either supply electrical power to the antenna elements cells or output RF signals that are received by the square ring patch. The disclosed antenna elements may be arranged together in an antenna array that is tunable to collectively generate or receive RF signals.

Abstract: A fine-tuning holder for a low-earth-orbit-satellite array antenna has a supporting mount, an adjusting unit, and a tray. The supporting mount has a fixed axis. The adjusting unit is disposed on the supporting mount and is rotated relative to the supporting mount about a first rotating axis being inclined relative to the fixed axis. The tray is disposed on the adjusting unit and is rotated relative to the adjusting unit about a second rotating axis being inclined relative to the first rotating axis. When terrains of a mounting position are rugged, rotate the adjusting unit about the first rotating axis for aligning the tray with the horizon, and rotate the tray about the second rotating axis to adjust the azimuth angle of the tray. The low-earth-orbit-satellite array antenna can be directly aligned and have maximum efficiency when mounted on the tray.

Abstract: A cover includes a cover body and a first line layer. The cover body is made of an insulating material, and the first line layer is made of a conductive material. The first line layer is completely built into the cover body, and the first line layer is configured to form a radiator, and is coupled to a radio frequency transceiver circuit of an electronic device. The first line layer includes a plurality of first conducting wires and a plurality of second conducting wires. The plurality of first conducting wires are arranged at intervals in a first direction, and the plurality of second conducting wires are arranged at intervals in a second direction. The plurality of first conducting wires and the plurality of second conducting wires are disposed intersecting each other. The first direction is different from the second direction.

Abstract: Provided is an antenna device whose characteristics are enhanced (radio waves are efficiently emitted from an extended antenna) without need to place a communication unit that wirelessly communicates with the outside of a vehicle in close proximity to a loop structure of the vehicle, thus allowing a high flexibility of installation of the communication unit. An antenna device mounted on a vehicle includes a communication unit configured to wirelessly communicate with an outside of the vehicle, and a metal bracket configured to serve also as an extended antenna, and the communication unit includes a housing and a substrate-accommodated in the housing and on which a pattern antenna is formed, the metal bracket includes a first part fixed to the housing and a second part fixed to the vehicle.

Abstract: A single-piece corrugated component, such as a feed horn, of an antenna includes a main body having a generally hollowed truncated pyramidal or conical shape which defines a body axis. The body extends from a base to an aperture, and includes a plurality of corrugations centered about the body axis, respectively. Each corrugation has a frustopyramidal ridge extending inwardly and locally perpendicularly from an inner surface of the main body at a ridge angle relative to the body axis varying between 10-60 degrees in a direction either toward the first end or the second end. A plurality of the frustopyramidal ridges have a respective inward virtual extension thereof crossing the body axis before intersecting the main body. A method of manufacturing the corrugated component includes the step of printing the component using an additive manufacturing technology.

Abstract: An antenna device according to an embodiment includes a dielectric layer, a rhombus-shaped first radiator disposed on an upper surface of the dielectric layer, a transmission line connected to the first radiator, a signal pad connected to one end of the transmission line, ground pads disposed around the signal pad, and second radiators extending from the ground pad along lower sides of the first radiator.

Abstract: An apparatus comprising an enclosure for an antenna arrangement including physically integrated parts including a first part of relatively dense, injection moldable plastic and a second part of less dense, injection moldable plastic. The first part and the second part are contiguous.

Abstract: A phased array antenna comprises an array of reflective cells, each cell being defined by a wall positioned within the array the wall arranged to define a waveguide, and having a moveable reflector positioned within the wall. Each reflector is arranged such that it is not in electrical contact with its respective wall and such that, in use it can be moved to tune the antenna. A feed and subreflector are positioned within the array and arranged to transmit and/or receive electromagnetic signals to and/or from the array.

Abstract: An electronic device may have a cover layer and an antenna. A dielectric adapter may have a first surface coupled to the antenna and a second surface pressed against the cover layer. The cover layer may have a three-dimensional curvature. The second surface may have a curvature that matches the curvature of the cover layer. Biasing structures may exert a biasing force that presses the antenna against the dielectric adapter and that presses the dielectric adapter against the cover layer. The biasing force may be oriented in a direction normal to the cover layer at each point across dielectric adapter. This may serve to ensure that a uniform and reliable impedance transition is provided between the antenna and free space through the cover layer over time, thereby maximizing the efficiency of the antenna.

Abstract: An antenna system mounted on a vehicle according to the present invention comprises: a first antenna comprising a plurality of conductive members and operating as a radiator in a first frequency band; and a second antenna disposed in the antenna system separate from the first antenna, and operating in a second frequency band higher than the first frequency band. The first antenna may include a loop antenna configured in a loop shape to surround the plurality of conductive members such that signals from the plurality of conductive members are coupled.

Abstract: A patch antenna structure includes a metal substrate, a feeding patch connected to the metal substrate, and a first feeding line disposed on the feeding patch, a first feeding point and a second feeding line connected in the first feeding line, and a second feeding point connected in the second feeding line, the first feeding line and the second feeding line intersect at a node. A length of the first feeding line between the node and the first feeding point and a length of the second feeding line between the node to the second feeding point are set equal. A switching component for changing the relative phase between the first feeding point and the second feeding point is provided in the first feeding line and/or in the second feeding line.

Abstract: Antenna systems having adaptive antenna arrays for use in wireless communication devices are provided. In one example implementation, the antenna system includes a first antenna array include a plurality of antenna elements. The antenna system includes a second antenna array including a plurality of antenna elements. The first and second antenna arrays are each disposed about the periphery of the wireless device. At least one of the first and second antenna arrays is an adaptive antenna array having an active multi-mode antenna. The active multimode antenna can be adapted for configuration in one of a plurality of possible modes. The active multi-mode antenna is associated with a distinct radiation pattern when configured in each of the plurality of possible modes.

Abstract: A three-dimensional (3D) horn air waveguide antenna assembly and its method of manufacture include a bottom stamped metal layer defining a set of electrical connection ports and a plurality of top stamped metal layers arranged atop the bottom stamped metal layer with a brazing material deposited between each stamped metal layer, the plurality of top stamped metal layers defining a channel area proximate to the bottom stamped metal layer, a horn air waveguide antenna area that widens from a bottom portion to a top portion, and a slot area fluidly connecting the channel and horn air waveguide antenna areas.

Abstract: An assembly for installing mobile radio antenna systems that do not cause any passive intermodulation interferences. The assembly includes brackets for clamping around conduits, support bars, support plates, arms, frame, and the like for coupling different components of the mobile radio antenna system. The brackets, threaded rods, threaded bolts, hex nuts, and the like of the assembly are made from plastic to avoid generating interferences.