Abstract: An eLORAN receiver may include an antenna and eLORAN receiver circuitry coupled to the antenna. The antenna may have a ferromagnetic core including a ferromagnetic medial portion and ferromagnetic arms extending outwardly from the ferromagnetic medial portion, a respective electrically conductive winding surrounding each of the ferromagnetic arms, and an electrically conductive patch element adjacent the ferromagnetic core.

Abstract: A base station antenna includes first and second reflectors that are movable relative to each other, and each of the first and second reflectors includes a plurality of radiating elements on a main reflector surface thereof. A third reflector is movably coupled to the first and second reflectors, and movement of the third reflector causes the first and second reflectors to move relative to each other. A drive mechanism is utilized to move the third reflector and includes a drive shaft, an actuator configured to rotate the drive shaft, and a threaded shaft coupled to the drive shaft and configured to rotate in response to rotation of the drive shaft. Rotational movement of the threaded shaft causes linear movement of the third reflector. A control unit, such as a remote electrical tilt (RET) controller controls the actuator to rotate the driveshaft.

Abstract: A microstrip ultra-wideband antenna is provided, including: an upper dielectric substrate, a radiation patch, an open-circuit line, a short-circuit line, a ground plane, a lower dielectric substrate, a vertical dielectric substrate, isolation walls, a hyperbolic microstrip balun feeder and an ideal wave port. The radiation patch is attached to a lower surface of the upper dielectric substrate; the ground plane is attached to an upper surface of the lower dielectric substrate; the short-circuit line and the open-circuit line are attached to a rear surface and a front surface of the vertical dielectric substrate respectively; the hyperbolic microstrip balun feeder is attached to the front and rear surface of the vertical dielectric substrate; the isolation walls are located between the upper dielectric substrate and the lower dielectric substrate perpendicularly to an end of the radiation patch; and the ideal wave port is provided below the hyperbolic microstrip balun feeder.

Abstract: The disclosure provides an ultra-wideband non-metal horn antenna, which includes three combinable non-metal elements such as an impedance matching member, a field adjustment member and an outer cover member. The impedance matching member and the field adjustment member are respectively disposed with a first and second groove structures. The field adjustment member is connected between the impedance matching member and the outer cover member. Therefore, the horn antenna of the disclosure can have a more symmetrical radiation pattern, a smaller antenna size, and ultra-wideband performance.

Abstract: A bendable antenna is provided. The bendable antenna is adapted to connect a cable. The bendable antenna includes an antenna body, a connection base, a first pivot base, a second pivot base, a first elastic element and a first restriction structure. The connection base is connected to the antenna body. The first pivot base is connected to the connection base, wherein the first pivot base includes a first recess. The second pivot base pivots on the first pivot base. The first elastic element is disposed in the first recess of the first pivot base, wherein the first elastic element is telescoped on the cable. The first restriction structure is connected to the connection base, wherein the first restriction structure pushes the first elastic element to restrict the first elastic element in the first recess.

Abstract: An adjustable polarization converter and an electronic device are provided. The adjustable polarization converter includes a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The first substrate includes a first base substrate and a first electrode on the first base substrate; the second substrate includes a second base substrate and a second electrode on the second base substrate. The first electrode includes a conductive frame and two triangular conductive patches. The conductive frame includes two openings disposed in sequence, and the two triangular conductive patches are disposed in a region surrounded by the conductive frame and are centrally symmetric.

Abstract: An imaging system includes a first camera and a second camera. A first antenna arrangement collects image light from a first scene as seen by the first camera, and a second antenna arrangement collects image light from a second, different scene as seen by the second camera. The first antenna arrangement includes a first polarized dish antenna and the second antenna arrangement includes a second polarized dish antenna. The first camera and the second camera are supported with a first polarization of the first polarized dish antenna orthogonal to a second polarization of the second polarized dish antenna such that at least some of the image light from the first scene travels through the second polarized dish antenna to reach the first camera and at least some of the image light from the second scene travels through the first polarized dish antenna to reach the second camera.

Abstract: A dielectric resonator antenna and a dielectric resonator antenna array. The dielectric resonator antenna includes a ground plane, a dielectric resonator element operably coupled with the ground plane, and a feed network operably coupled with the dielectric resonator element for exciting the dielectric resonator antenna. The dielectric resonator element includes a first portion with a first shape and a second portion with a second shape different from the first shape. The dielectric resonator antenna, when excited, is arranged to provide wide half-power beam-widths in both E-plane and H-plane.

Abstract: A phased antenna array includes a plurality of variable length radiators arrayed in a geometric pattern. A length control mechanism is mechanically coupled to each one of the variable length radiators and responsive to radiator length control data to control the length of the variable length radiator. A variable phase delay circuit is coupled to each of the variable length radiators and responsive to phase delay control data to control a phase delay of a radio frequency signal coupled to the variable phase delay circuit. A controller has phase delay circuit control outputs coupled to each one of the variable phase delay circuits, and length control circuit coupled to each one of the length control mechanisms. The controller is configured to send radiator length control data to each one of the length control mechanisms and to send phase delay data to each one of the variable phase delay circuits.