Abstract: An ultra-long sub-wavelength grating as an optical antenna for optical phased arrays includes a top structure and a bottom structure which are vertically stacked. The bottom structure is made of a material with a refractive index lower than a refractive index of the top structure. The top structure is made of a material with a refractive index higher than that of the bottom structure. A strip waveguide is disposed in the middle of the top structure. subwavelength blocks are disposed periodically on two sides of the straight strip waveguides. The invention has the following beneficial effects. The structure could increase the effective length of the grating; uniform near field distribution can be achieved by controlling the positions of the subwavelength blocks. The structure is simpler with lower fabrication requirements and lower cost.

Abstract: Provided herein is an artificial dielectric material for use in a focusing lens, comprising a plurality of dielectric tubes supported by one or more dielectric supporting elements which fix and separate the dielectric tubes from each other, wherein a surface of each dielectric tube is at least partially covered by at least one conductive element. Also provided are lenses comprising the artificial dielectric materials and methods for manufacture of such materials. The artificial dielectric materials and lenses may provide desirable dielectric and radio wave focusing properties and manufacturing advantages.

Abstract: An infusion pump assembly is disclosed. The infusion pump assembly includes a reservoir for receiving an infusible fluid, a pump assembly for pumping a quantity of infusible fluid from the reservoir to an exit, a first valve assembly configured to selectively isolate the pump assembly from the reservoir, a second valve assembly configured to selectively isolate the exit from the pumping assembly, and a split ring resonator antenna having a resonant frequency comprising a plurality of planar metallic layers.

Abstract: A antenna module includes a telematics unit having a telematics printed circuit board and a Peltier element. The telematics printed circuit board has a first section and a second section. The first section is cooled by a forced airflow and the second section is cooled by the Peltier element.

Abstract: An antenna apparatus is provided that has a strip of antenna elements extending in a first dimension, and a signal processing interface for connection to signal processing circuitry. A plurality of beamforming networks are also provided, wherein each beamforming network is arranged, when coupled to the strip of antenna elements, to cause an associated beam pattern of the beamforming network to be generated by the strip of antenna elements. Switching circuitry is used to enable any one of the plurality of beamforming networks to be inserted between the strip of antenna elements and the signal processing interface. Each beamforming network couples a first node of the beamforming network with multiple second nodes of the beamforming network in accordance with a coupling pattern of that beamforming network.

Abstract: A high-gain and low-RCS (radar cross section) broadband circularly polarized metasurface antenna based on a novel sequential-rotation feeding network includes three layers of dielectric substrates and five metal layers as well as three resistors, which are from top to bottom: a first metal layer, a first dielectric substrate, a second metal layer, a second dielectric substrate, a third metal layer, a fourth metal layer, a third dielectric substrate and a fifth metal layer. The first three metal layers are all metasurface arrays composed of 10*10 metal patches; the fourth metal layer and the third metal layer define a resonant cavity by means of a distance therebetween; the fourth metal layer is provided with four slits having rotational symmetry; and the fifth metal layer is a hybrid feeding network composed of microstrip lines and including three equal power dividers and three resistors.

Abstract: A reflector antenna system includes: a concave primary reflector, the concave primary reflector adapted to be illuminated by a sub-reflector and radiate accordingly an axisymmetric beam; a coherent-phase sub-reflector disposed one in front of the primary reflector; and a feed adapted to operate with the TE01 axisymmetric mode and illuminating the said sub-reflector by employment of such. the aperture of the feed disposed to crowd the sub-reflector.

Abstract: An electromagnetic adjustable element that is adapted to change the manner in which an electromagnetic wave is reflected and/or transmitted and/or radiated by said adjustable element, the adjustable element comprising a first electromagnetic element and a second electromagnetic element, and a switch between them. The switch is a transistor structure including transistors of low power type, lower than 20 dBm.

Abstract: Embodiments of the present disclosure disclose an antenna array applied to an optical phased array, the optical phased array, and a LiDAR. The antenna array includes N phase compensation groups and N antenna groups, where each phase compensation group includes M phase compensation units, and each antenna group includes M antenna units, and where N and M are positive integers. An input end of a phase compensation unit in the phase compensation group is configured to receive an optical signal. An output end is connected to an antenna unit in the antenna group, is configured to transmit the received optical signal to the antenna unit, and performs phase compensation on the optical signal based on a phase shift caused by the antenna unit. The antenna unit is configured to transmit the optical signal.

Abstract: Examples disclosed herein relate to a meta-structure based active reflectarray for passive and active reflection. A control module is coupled to reflection elements to provide energy and change the phase of the elements.

Abstract: A waveguide antenna (200) is disclosed, comprising: a first plurality (220) of slots (222,224), for producing a beam having a first radiation pattern (301) at a first resonant frequency (f1); and a second plurality (230) of slots (232, 234), for producing a beam having a second radiation pattern (302) at a second resonant frequency (f2).

Abstract: Disclosed herein are integrated circuit (IC) packages, antenna boards, antenna modules, and communication devices (e.g., for millimeter wave communications). For example, in some embodiments, an antenna module may include: a logic die; a radio frequency front-end (RFFE) die in electrical communication with the logic die; and an antenna patch, wherein the RFFE die is closer to the antenna patch than the logic die is to the antenna patch.

Abstract: The present disclosure relates to a gradient structure (100) for transmitting and/or reflecting an electromagnetic signal. The gradient structure comprises a plurality of interconnected cells (110). Each cell comprises a through cavity (112) surrounded by walls (111), wherein the walls of each cell have a gradually varying thickness along a longitudinal direction of each cell. The present disclosure also relates to a cover structure (200) comprising the gradient structure (100), a system (300) comprising the cover structure (200), a structure element (400) having integrated therein the system (300) and to a method for optimizing the transmittance and/or reflectance of an electromagnetic signal of a gradient structure.

Abstract: A radio module for a wireless communication node comprises (i) a phased antenna array comprising a first set of antenna elements having a first polarization and a second set of antenna elements having a second polarization, (ii) a radio frequency (RF) module comprising a plurality of RF chains that are configured to feed the first and second sets of antenna elements in the phased antenna array, and (iii) a control unit that is configured to control an activation state of each antenna element in the phased antenna array. The radio module further comprises at least one beam narrowing module that is configured to (i) receive signals emitted by any active antenna element in the phased antenna array and (ii) consolidate the received signals into a respective narrow beam composite signal.

Abstract: A communication device includes a system board that includes a plurality of chips. Each chip in plurality of chips includes a plurality of antennas. A system cover coupled to system board includes a plurality of lenses. Each lens is configured to cover an antenna of plurality of antennas as a radome enclosure. Each lens includes a base, and a first tubular membrane coupled to base. A second membrane coupled to first tubular membrane. First tubular membrane and Second membrane cause the lens to have a bell shape. A support structure coupled to first tubular membrane. Support structure facilitates coupling of plurality of lenses to system cover. Each chip comprises a feeder array that further comprises a plurality of antenna elements that are positioned at a proximal distance from base of a lens, A distribution of a gain of input RF signals is substantially equalized across plurality of antenna elements.

Abstract: The present invention relates to an antenna apparatus, which specifically comprises: a filter unit which is disposed to form at least one layer; an electric appliance unit which is coupled and is spaced apart from the filter unit to form a layer different from that of the filter unit, and includes various electric devices installed therein; a filter unit heat dissipation module which is coupled to the opposite surface of a surface of the filter unit, the surface being coupled to the electric appliance unit, and thus radiates heat generated from the filter unit to the outside; and an electric appliance unit heat dissipation module including a first electric appliance unit heat dissipation module and a second electric appliance unit heat dissipation module, wherein: the first electric appliance unit heat dissipation module is coupled to the opposite surface of a surface of the electric appliance unit, the surface being coupled to the filter unit, and thus radiates, to the outside, heat generated from first heat

Abstract: A phase control device (100) includes a two-dimensional array of three-dimensional units (10) and is configured to control a phase of an electromagnetic wave passing through the three-dimensional units (10). Each three-dimensional unit (10) includes a substrate (12) and an active control layer (11). The active control layer (11) includes metal patches (111) and (112), and a modulator (113) disposed between the two metal patches and connected to each of the two metal patches. The substrate (12) includes at least one bias line (114 or 116) connected to one of the two metal patches and extending in a direction perpendicular to a direction of an electric field of the electromagnetic wave.

Abstract: The present disclosure describes a mounting bracket for remote radio unit mounting assemblies. The mounting bracket includes a bracket member having a main body section and two arms extending outwardly at an oblique angle from opposing ends of the main body section, wherein the main body section includes a slot and each arm includes a plurality of mounting apertures; and a brace member, wherein a middle section of the brace member is configured to be received within the slot of the bracket member and opposing end sections of the brace member contact a respective arm of the bracket member. Remote radio unit mounting assemblies are also described herein.

Abstract: The communication system as described herein includes an input feed, a source, and a tuner device. The input feed receives an input signal. The source emits a wireless signal based on the received input signal. The tuner device is disposed adjacent to the source emitting the wireless signal. The tuner device receives the wireless signal emitted from the source and produces a wireless output. In one embodiment, the tunable device includes multiple individually controlled window regions to control a radiation pattern of the wireless output transmitted from the tuner device.

Abstract: An antenna apparatus has a sleeve antenna. The sleeve antenna has an internal conductive member, an external conductive member, an insulating member, and a mountain-shaped conductive member that is electrically connected to the external conductive member. The mountain-shaped conductive member expands radially from an upper edge towards a lower edge. The internal conductive member protrudes higher than the external conductive member above the upper edge of the mountain-shaped conductive member.