Abstract: A phase shifter and an antenna are provided. The phase shifter includes: oppositely arranged first and second substrates; a medium layer between the first and second substrates and having an adjustable dielectric constant; a phase shift unit including a transmission line and a phase control electrode, the transmission line being between the first substrate and the medium layer, and the phase control electrode being between the second substrate and the medium layer; and multiple first wires for regulating an electric field between the transmission line and the phase control electrode, an orthographic projection of the first wires onto the first substrate being parallel to an orthographic projection of the transmission line onto the first substrate, the orthographic projection of the first wires onto the first substrate being on opposite sides of the orthographic projection of the transmission line onto the first substrate.

Abstract: To provide a frequency selective surface of which an operating frequency and a bandwidth thereof can be readily adjusted.

Abstract: A reactance cancelling radio frequency (RF) circuit array is disclosed. The reactance cancelling RF circuit array includes multiple RF circuits each coupled to one or two adjacent RF circuits by one or two pairs of coupling mediums each having a respective length less than one-quarter wavelength. In one aspect, an RF input signal is first split across the RF circuits and then combined to form an RF output signal. As a result, each RF circuit requires a lower power handling capability to process a portion of the RF input signal. In another aspect, each pair of the coupling mediums can cause reactance cancellation in each reactance-cancelling pair of the RF circuits. By coupling the RF circuits via the coupling mediums and enabling splitting-combining among the RF circuits, it is possible to miniaturize the reactance cancelling RF circuit array for improved performance across a wide frequency spectrum.

Abstract: A wireless communication system including an electrically conductive passive medium capable of simultaneously propagating therealong electromagnetic first and second currents at different respective frequencies F1 and F2, the electrically conductive passive medium including an electrically conductive first passive linear medium portion adjacent an electrically conductive first passive nonlinear medium portion, the first passive nonlinear medium portion capable of generating an intermodulation current based on a nonlinear interaction between the first and second currents, the intermodulation current having a frequency Fi equal to nF1+mF2 and propagating along the first passive nonlinear medium portion, m and n being positive or negative integers; and a first magnetic film disposed proximate an electrically conductive external surface of the first linear medium portion, such that when the first and second currents propagate along the first passive linear medium portion toward the first passive nonlinear medium

Abstract: A vehicular half loop antenna is provided that includes a ground section and a feed section. The ground section has a ground point that is configured to be electrically grounded. The feed section is configured to be electrically connected to the ground section. The feed section includes a first feed portion having a feed point that is configured to be electrically connected to an antenna feed, and a second feed portion connected to the first feed portion via a corner portion therebetween, with the corner portion being located farther from the ground point than the feed point and having a curved or tapered outer edge.

Abstract: A multiple-feed antenna system includes a first feed configured to communicate signals in a first frequency range of a plurality of frequency ranges and a second feed configured to communicate signals in a second frequency range of the plurality of frequency ranges. A subreflector assembly is configured to move among multiple positions that include a first position and a second position. When the subreflector assembly is in the first position, a first element of the subreflector assembly redirects a signal reflected by a primary reflector to the first feed. When the subreflector assembly is in the second position, a second element of the subreflector assembly redirects the signal reflected by the primary reflector to the second feed.

Abstract: An impedance converter includes an insulating layer; a first wire provided on a first surface of the insulating layer and extending in a first direction; a second wire provided on a second surface of the insulating layer and extending in the first direction and face the first wire, the second surface being located on a side opposite to the first surface; a third wire provided on the first surface and extending in a second direction orthogonal to the first direction; a fourth wire provided on the second surface and extending in the second direction and face the third wire; a fifth wire provided on the first surface and extending in the second direction; and a sixth wire provided on the second surface and extending in the second direction and face the fifth wire.

Abstract: A rotating device and a rotating radar device. The rotating device comprises a fixed platform and a rotating platform; the top of the fixed platform and the bottom of the rotating platform are rotatably connected by a rotating shaft, a first bearing, and a second bearing; the rotating shaft is connected to the inner ring; the fixed platform includes a carbon brush and a first magnetic member; the rotating platform includes a second magnetic member and a rotor conductive ring; an outer ring of the first bearing is connected to the fixed platform; an inner ring of the second bearing is connected to the fixed platform, and an outer ring of the second bearing is connected to the rotating platform.

Abstract: A filter has a first conductive layer, a second conductive layer, and a dielectric substrate located between the first conductive layer and the second conductive layer, wherein the dielectric substrate includes a waveguide capable of propagating a radio-frequency signal in a first direction by a region between a first conductive via group passing through the dielectric substrate from the first conductive layer to the second conductive layer and spaced apart from each other along the first direction and a second conductive via group passing through the dielectric substrate from the first conductive layer to the second conductive layer and spaced apart along the first direction, and a reflective resonator that is coupled to the waveguide in an electromagnetic field and reflects a signal in a predetermined frequency band in the radio-frequency signal propagating through the waveguide, and the reflective resonator has a third conductive via group and fourth conductive vias.

Abstract: An electronic device is provided The electronic device includes a patch antenna element, at least one antenna including a first feeding unit electrically connected to the patch antenna element and a second feeding unit electrically connected to the patch antenna element so as to have a designated isolation for a signal that is input to the first feeding unit, a radio frequency integrated circuit (RFIC) which includes a first communication circuit including a first transmission circuit and a first reception circuit which are electrically connected to the first feeding unit, and a second communication circuit including a second transmission circuit and a second reception circuit which are electrically connected to the second feeding unit, and a processor.

Abstract: Disclosed is an antenna module including a circuit board, a communication circuit disposed on one surface of the circuit board, one or more antenna elements electrically connected to the communication circuit and arranged in at least a part of the circuit board, and a connection circuit board which includes an at least partially covered opening and is disposed on the one surface of the circuit board such that the communication circuit is disposed in an inner space of the connection circuit board.

Abstract: Aspects of the subject disclosure may include, for example, a motorized drive assembly that includes a motor and a drive assembly, where the drive assembly has an axle configured to be disposed through a rotatable substrate of a polarization shifter for a dual-polarized radiating element, the axle being further configured to fasten, at a first end of the axle, to a support structure of the polarization shifter, wherein, when the motorized drive assembly is assembled to the polarization shifter, the motor is controllable to impart rotational forces, via movement of the axle, to the polarization shifter to effect polarization adjusting for the dual-polarized radiating element. Other embodiments are disclosed.

Abstract: A device for signal generation including a unit cell. The unit cell contains two oscillators that are coupled in phase. Each oscillator operates at a fundamental frequency. Each oscillator further includes a slot structure, and the slot structures serve as, at a third harmonic of the fundamental frequency, a slot antenna radiating a third harmonic power. If the device contains multiple unit cell, then each unit cell is horizontally coupled out-of-phase and vertically in-phase with adjacent cells at the fundamental frequency in the device. Therefore, coherent radiation and power combining are achieved at the third harmonic.

Abstract: Disclosed is a phase shifter arrangement for an antenna, such as a cellular antenna, that has a simplified drive mechanism. The phase shifter arrangement has two phase shifters, each with two wiper arms that are coupled at one end to a single drive shaft. Each of the wiper arms have a pivot access that may be located at or near its center such that as the drive shaft translates, it mechanically engages both wiper arms, causing them to rotate around their respective pivot axes. Certain antenna arrangements have several array faces. For example, the antenna may have three array faces, each spaced at 120 degrees of azimuth. The drive shafts for each of these array faces may operate independently to function as a multisector antenna, or they may be driven in unison to function as an omnidirectional antenna.

Abstract: A dielectric substrate for RF, microwave, or millimeter wave devices, circuits, or surfaces includes a propagating region for transmitting or reflecting an electromagnetic field, and one or more material-filled vias located within the propagating region. The application of an external electric or magnetic field to the material-filled vias may be used to tune the electric permittivity or the magnetic permeability of the fill material and hence control the effective electric permittivity or the effective magnetic permeability of the dielectric substrate within the propagating region. A dimension of the material-filled vias may be less than half of a wavelength of the propagating electromagnetic field. The fill material may include liquid crystals, a ferroelectric crystal composite, a ferromagnetic crystal composite, organic semiconductors, and/or electro-optic or magneto-optic polymers.

Abstract: A transmission line having, for example, a first frequency-selecting surface.

Abstract: Embodiments of the invention include a microelectronic device that includes a first substrate having radio frequency (RF) components and a second substrate that is coupled to the first substrate. The second substrate includes a first conductive layer of an antenna unit for transmitting and receiving communications at a frequency of approximately 4 GHz or higher. A mold material is disposed on the first and second substrates. The mold material includes a first region that is positioned between the first conductive layer and a second conductive layer of the antenna unit with the mold material being a dielectric material to capacitively couple the first and second conductive layers of the antenna unit.

Abstract: Systems and methods of manufacture are disclosed for semiconductor device assemblies having a front side metallurgy portion, a substrate layer adjacent to the front side metallurgy portion, a plurality of through-silicon-vias (TSVs) in the substrate layer, metallic conductors located within at least a portion of the plurality of TSVs, and at least one conductive connection circuitry between the metallic conductors and the front side metallurgy portion. The plurality of TSVs with metallic conductors located within are configured to form an antenna structure. Selectively breakable connective circuitry is used to form and/or tune the antenna structure.

Abstract: Aspects of the subject disclosure may include, for example, a polarization shifter including a lower substrate having disposed thereon first and second transmission lines for coupling to a feed network, an upper substrate having disposed thereon third and fourth transmission lines for respective communicative coupling to orthogonally-polarized elements of a radiating element, and a dielectric layer residing between the lower substrate and the upper substrate, the upper substrate being configured to mechanically couple to the radiating element, the dielectric layer coupling the first transmission line with the third transmission line and coupling the second transmission line with the fourth transmission line, the upper substrate being rotatable relative to the lower substrate to effect polarization adjusting for the radiating element to facilitate avoidance of interference or passive intermodulation (PIM). Other embodiments are disclosed.

Abstract: An antenna may include a ground plane, a tuning stub, and a shorted spiral antenna element connected to the tuning stub. The shorted spiral antenna element may include a plurality of spiral traces shorted together by a shorting element extending radially outward to contact each of the spiral traces.