Abstract: A system with a containment assembly formed by containment panels in an array about an interior of the assembly, and a ventilation apparatus for permitting passive air movement and producing active air movement through the interior. The ventilation apparatus may include an active air movement structure to produce active air movement into the interior. The active air movement structure may include at least one air entry opening located on the containment assembly toward the first end, at least one air exit opening located on the containment assembly toward the second end, and an air movement assembly positioned with respect to the containment assembly to create air movement in the interior of the containment assembly. Embodiments of the ventilation apparatus may include a passive air movement structure with at least one ventilation slot in the containment assembly and situated to permit a cross flow of air through the interior.

Abstract: A configurable radio frequency device includes a surface and a plurality of configurable radio frequency elements disposed on the surface. The radio frequency elements can be configured to absorb, reflect, or pass a radio transmission. A controller is configured to control the configuration of the surface by setting the state of the radio frequency elements. The controller also determines a deployment configuration for the surface by applying a series of test configurations to the surface and receiving a measurement of signal quality as measured by a receiver. The controller can then use these measurements to determine how to set the states of the radio frequency elements for the deployment configuration.

Abstract: An antenna cap includes a housing defining an elongate continuous sidewall, the continuous sidewall defining a first end and a second end, an end wall extending from the first end, the end wall and continuous sidewall defining an interior cavity for receiving an antenna, an opening defined at the second end and configured for access to the interior cavity; and a fastener proximate the second end and configured for attaching the housing to the antenna node, the fastener formed with the continuous sidewall, wherein a length of the continuous sidewall between the first end and the fastener is greater than a length of the fastener, and wherein the continuous sidewall defines a consistent outer sidewall diameter from the first end to the fastener.

Abstract: A nozzle cap assembly can include a nozzle cap body defining a top end and a bottom end, the nozzle cap body defining a base positioned at the top end and a curved side wall extend from the base down to the bottom end; an enclosure coupled to the top end, the enclosure rotationally fixed relative to the nozzle cap body, the enclosure at least partially defining an enclosure cavity; and a nut base positioned opposite from the nozzle cap body, the enclosure positioned between the nut base and the base.

Abstract: An impedance matching method for a low-profile ultra-wideband array antenna is provided. The method includes: connecting an arm of a balanced end of a hyperbolic microstrip balun in series with an open circuit line; directly coupling the open circuit line to a radiator layer; connecting another arm of the balanced end of the hyperbolic microstrip balun to the radiator layer via a metallized via hole, and welding an unbalanced end of the hyperbolic microstrip balun to a coaxial line, so that the coaxial line feeds a power to the antenna via the hyperbolic microstrip balun. In this method, the open circuit line is integrated between the hyperbolic microstrip balun and the radiator layer of the antenna to achieve an impedance matching of the ultra-wideband antenna and to simplify a structure of a matching circuit.

Abstract: A method of manufacturing an electromagnetic wave reflecting structure includes the steps of presetting an operating frequency, a reflected wave pointing angle, an incident wave pointing angle, and an incident distance of an electromagnetic wave; obtaining an electromagnetic wave reflecting structure phase distribution of an electromagnetic wave reflecting structure according to the operating frequency, the reflected wave pointing angle, the incident wave pointing angle, and the incident distance; and arranging a plurality of reflecting elements on a substrate according to the electromagnetic wave reflecting structure phase distribution and a reflecting element phase curve of any one of the reflecting elements at the operating frequency.

Abstract: A waveguide 200 for a leaky wave antenna 20 is described. The waveguide 200 comprises a male member 210 (210A-210T) and a corresponding female member 220 (220A-220T) arranged to receive the male member 210 (210A-210T) therein. The waveguide is arrangeable in a first configuration and a second configuration. The male member 210 (210A-210T) is received in the female member 220 (220A-220T) spaced apart therefrom in the first configuration and the second configuration. The first configuration defines a first effective delay line. The second configuration defines a second effective delay line. The first effective delay line is different from the second effective delay line. The leaky wave antenna 20 is also described.

Abstract: An ultra wide band antenna includes a ground plane and an antenna body including a planar portion arranged above and parallel to the ground plane. A tapered spiral portion includes a T spiral tapered legs that have a spiral shape and that horizontally taper in a direction towards the ground plane, where T is an integer greater than one. L supporting legs connecting an outer edge of the planar portion to the ground plane, where L is an integer greater than one.

Abstract: The disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. An antenna module is provided. The antenna module includes a flexible printed circuit board (FPCB) including a first surface directed in a first direction and a second surface directed in a second direction that forms a predetermined first angle with respect to the first direction, a first antenna deployed on one surface of the first surface, and a second antenna deployed on one surface of the second surface.

Abstract: A nozzle cap assembly can include a nozzle cap body defining a top end and a bottom end, the nozzle cap body defining a base positioned at the top end and a curved side wall extend from the base down to the bottom end; an enclosure coupled to the top end, the enclosure rotationally fixed relative to the nozzle cap body, the enclosure at least partially defining an enclosure cavity; and a nut base positioned opposite from the nozzle cap body, the enclosure positioned between the nut base and the base.

Abstract: A ground plane is disposed in a dielectric substrate or on the top surface of the dielectric substrate. A high-frequency semiconductor device is mounted on the bottom surface of the dielectric substrate. A shield structure that is provided in a space closer to the bottom surface than the ground plane is surrounds the high-frequency semiconductor device from below and sideways of the high-frequency semiconductor device and is connected to the ground plane. An opening is formed in the shield structure. A radiation-structure portion causes a high-frequency signal output by the high-frequency semiconductor device to be radiated through the opening.

Abstract: A method and apparatus for electrical addressing for an antenna (e.g., a metamaterial radio-frequency (RF) antenna are described. In one embodiment antenna comprising: a plurality of radio-frequency (RF) radiating antenna elements located in a plurality of rings; and matrix drive circuitry coupled to the plurality of RF radiating antenna elements to drive the antenna elements, wherein the matrix drive circuitry to uniquely address each of the antenna elements using a matrix of a plurality of rows and a plurality of columns with a non-grid-based addressing structure.

Abstract: An electronic device is provided. The electronic device includes a battery; a display; a circuit board provided at a rear of the battery; and at least one second antenna provided at a rear of the battery, wherein the at least one second antenna includes a magnetic body and a conducting wire that is wound around the magnetic body multiple times in a first direction with respect to a first axis that is substantially parallel with a surface of the display.

Abstract: This document describes a waveguide with radiation slots and parasitic elements for asymmetrical coverage. An apparatus may include a waveguide for providing asymmetrical coverage in an azimuth plane. The waveguide includes a hollow channel containing a dielectric and an array of radiation slots through a surface that is operably connected with the dielectric. The waveguide includes an array of parasitic elements positioned on or in the surface and offset from a longitudinal side of the array of radiation slots. The radiation slots and parasitic elements configure the described waveguide to focus an antenna radiation pattern that provides an asymmetrical coverage to focus on a particular portion within the antenna field-of-view.

Abstract: A communication apparatus includes an antenna array having a plurality of antenna elements, and a plurality of thermoelectric devices that are arranged on the plurality of antenna elements of the antenna array. The communication apparatus further includes a processor that determines which subset of the antenna elements of the plurality of antenna elements are in an activated state and which are in a deactivated state, and further control each of the plurality of thermoelectric devices to execute an activation or a deactivation of each of the plurality of thermoelectric devices in synchronization with the activated state or the deactivated state of different subsets of antenna elements of the plurality of antenna elements.

Abstract: An antenna system, such as a multifeed antenna system, can include at least one antenna feed element. The antenna system can include an antenna loop element. The at least one antenna feed element can be capacitively coupled to the antenna loop element. The at least one antenna feed element can include one or more capacitively coupled regions. The one or more capacitively coupled regions can form at least a portion of the capacitive coupling of the at least one antenna feed element to the antenna loop element.

Abstract: A circularly polarized array antenna is provided. The circularly polarized array antenna includes a ground plane and a plurality of circularly polarized antennas. Each of the circularly polarized antennas is configured to communicate over a frequency band ranging from 24 gigahertz (GHz) to 52 GHz. Each of the circularly polarized antennas includes a column substrate coupled to the ground plane. The column substrate includes a plurality of faces. Each of the circularly polarized antennas further includes a plurality of isolated magnetic dipole elements. Each of the isolated magnetic dipole elements is disposed on a different face of the column substrate.

Abstract: A tunable antenna module includes a ground metal plane, a nonconductive support element, a first radiation metal element, a second radiation metal element, a switch element, and a plurality of impedance elements. The ground metal plane provides a ground voltage. The first radiation metal element is coupled to a signal source. The second radiation metal element is adjacent to and separate from the first radiation metal element. The switch element selects one of the impedance elements, such that the second radiation metal element is coupled through the selected impedance element to the ground voltage. The nonconductive support element has a 3D (Three-Dimensional) structure. The first radiation metal element and the second radiation metal element are distributed over the nonconductive support element.

Abstract: An antenna array includes one or more substrates and four individual antennas in a slant formation to improve radiation pattern independence. In various embodiments, a novel slanted antenna array configuration is disclosed where one of the four antennas is orthogonal to two of the remaining three antennas. In some embodiments, two separate substrates and a tapered dielectric spacer are used to provide a larger variety of slant formations.

Abstract: The present disclosure provides an antenna for wireless communication that includes a first planar conductor, which is adapted to resonate at frequencies of a first frequency range; and a second planar conductor, which is adapted to resonate at frequencies of a second frequency range that spans lower frequencies than the first frequency range. Thus, a compact and efficient antenna layout is provided that enables reception and transmission of radio signals on multiple frequency bands.