Abstract: In an embodiment, conductive structural members of a device acting as NFC antenna are described. According to an embodiment, a device comprises: two conductive structural members, each comprising a first electrical end and a second electrical end, a dielectric isolation being configured between the first electrical end of the first conductive structural member and the first electrical end of the second conductive structural member; two NFC antenna feeds, the first feed being electrically coupled with the first electrical end of the first member, the second feed being electrically coupled with the first electrical end of the second member; two grounding components, one each grounding the second electrical end of the conductive structural members; at least one additional antenna feed configured for a frequency other than that of NFC, coupled to either of the two members.

Abstract: An electronic device is provided. The electronic device includes a housing that includes a first surface, a second surface facing the first surface, and a side surface surrounding a space between the first and second surfaces, a printed circuit board (PCB) that is arranged inside the housing and includes at least one antenna unit, and a communication circuit that is arranged inside the PCB or between the PCB and the housing.

Abstract: Systems and methods relating to patch antennas. A patch antenna has a substrate, a resonant metal plate at one side of the substrate, and a ground plane at the other opposite side of the substrate. Two feed pins are used to couple the antenna to other circuitry. The feed pins pass through the substrate and holes in at the ground plane. The feed pins are physically disconnected from both the resonant metal plate and the ground plane. The feed pins are capacitively coupled to the resonant metal plate to provide an electronic connection between other circuitry and the patch antenna.

Abstract: Baluns and antenna devices that achieve improved antenna isolation for simultaneous transmit and receive (STAR) antennas are provided. A tunable balun can be used to compensate for amplitude imbalances in a multi-antenna radio, and/or an antenna agnostic feed network can be used to improve isolation in a single antenna radio. The balun can be integrated directly into the antenna. The balun can control the amplitude of each signal to ensure they are equal, resulting in greater transmitter interference cancellation.

Abstract: A passive wireless sensor system is disclosed that includes components fabricated from carbon nanotube (CNT) structures. In some situations, the passive wireless sensor system includes a CNT structure sensor and an antenna that communicates wirelessly by altering an impedance of the antenna. The passive wireless sensor system includes a non-battery-powered energy storage device that harvests energy from carrier signals received at the antenna. The antenna and the energy storage device can be formed from CNT structures.

Abstract: A reconfigurable antenna comprises a panel having a liquid metal pump coupled to a power supply; a liquid metal reservoir in fluid communication with the pump; one or more channels for transporting the liquid metal, each of the one or more channels having a proximal end in fluid communication with the pump, each of the one or more channels having a vent at a distal end, wherein application of power to the pump moves the liquid metal into or out of the channels thereby reconfiguring the antenna. The pump may be a pneumatic pump or a magnetohydrodynamic pump, and a layer of a phosphonic acid may be included on the liquid metal-bearing surfaces of the channels. The phosphonic acid may be decylphosphonic acid (DPA), fluorobenzylphosphonic acid (FPA), or difluorobenzylphosphonic acid (DFPA), and one or more sensors may be coupled to the panel for determining the position of the liquid metal in the channels.

Abstract: A planar antenna with an integrated receiver based on aperture coupled antenna elements with inclusive slots electrically coupled to a microstrip feed network residing above a lower ground plane is disclosed. The use of aperture coupled feed elements eliminate the need for vias, which simplifies fabrication. Further, the antenna has integrated electronics located on the same layer as the microstrip feed network to minimize any noise or unwanted parasitic effects.

Abstract: A passive radio-frequency redirector device is provided that includes: a polarized antenna configured to produce a radiation pattern in an azimuthal plane; and a directional antenna configured to produce a directional radiation pattern that is substantially complementary to the radiation pattern of the polarized antenna, wherein the directional radiation pattern is substantially cross-polarized relative to the radiation pattern of the polarized antenna, and the polarized antenna and the directional antenna are passively coupled together.

Abstract: A communications system such as a global position system (GPS) device, a spacecraft tracking device, a handheld radio, or any other communications device may include one or more helix antennas. Each helix antenna may include a conductive circular ring at a distal end of one or more helical arms. In a helical antenna with multiple arms, the arms may be shorted together at the distal end by the conductive circular ring.

Abstract: Aspects of the subject disclosure may include, a system for generating electromagnetic signals that resonate in a cavity having a plurality of reflectors resulting in resonating electromagnetic signals and combining the resonating electromagnetic signals to form an electromagnetic wave that traverses a reflector and couples onto a physical transmission medium. One or more of the reflectors is implemented via a programmable substrate. Other embodiments are disclosed.

Abstract: Systems and methods which provide a hollow dielectric block dual-fed dual-frequency antenna configuration, such as may be utilized for wireless device communication in multiple RF bands, multi-frequency radar applications, etc., are described. Embodiments of a hollow dielectric block dual-fed dual-frequency antenna provide operation with respect to widely separated frequencies, such as to operate at frequencies in both a millimeter-wave band and a microwave band. A hollow dielectric block dual-fed dual-frequency antenna of embodiments of the invention may be fabricated from a single hollow dielectric block configured to integrate a dielectric resonator antenna (DRA) and a Fabry-Perot resonator antenna (FPRA), wherein the hollow dielectric block may be configured to serve as the resonator for the DRA and the superstrate for the FPRA simultaneously. The resonant frequencies of the DRA and FPRA of a hollow dielectric block dual-fed dual-frequency antenna of embodiments can be determined independently.

Abstract: Systems and methods relating to patch antennas. A patch antenna has a substrate, a resonant metal plate at one side of the substrate, and a ground plane at the other opposite side of the substrate. Two feed pins are used to couple the antenna to other circuitry. The feed pins pass through the substrate and holes in at the ground plane. The feed pins are physically disconnected from both the resonant metal plate and the ground plane. The feed pins are capacitively coupled to the resonant metal plate to provide an electronic connection between other circuitry and the patch antenna.

Abstract: Disclosed are a near field communication antenna module and a portable terminal having the same, which can form a radiation pattern winding in the vertical direction or in the horizontal direction of a magnetic body to enable near field communication on a rear surface and a side surface of the portable terminal. In the disclosed near field communication antenna module, an adhesive substrate is stacked on a lower surface of a radiation substrate of a magnetic body on which the radiation pattern is formed, and a signal processing substrate and a protection substrate are stacked and formed on an upper surface of the radiation substrate, and the radiation pattern winds the magnetic body in the vertical direction or in the horizontal direction.

Abstract: An apparatus comprising at least a plurality of antenna modules mounted on a printed circuit board (PCB) is disclosed. The PCB includes a plurality of holes embedded with a heat sink. Each antenna module comprises an antenna substrate. Each antenna module further comprises a plurality of three-dimensional (3-D) antenna cells that are mounted on a first surface of the antenna substrate. Each antenna module further comprises a plurality of packaged circuitry that are mounted on a second surface of the antenna substrate. The plurality of packaged circuitry are electrically connected with the plurality of 3-D antenna cells. Furthermore, each antenna module is mounted on the plurality of holes via a corresponding packaged circuitry of the plurality of packaged circuitry.

Abstract: A clip for securing a radiating arm to a printed circuit boards of a radio frequency antenna element of a base station antenna. The radiating arm may be configured to receive signals or radiate signals from a feed network associated with the at least one RF antenna member. The radiating arm can be secured to the printed circuit board without the use of solder or adhesives.

Abstract: A spiral antenna apparatus, which may comprise an antenna element disposed in two spiral arms in a vertical zigzag pattern. The apparatus may comprise an electromagnetic band gap cavity comprising: a ground plane, one or more layers of conductive patches, at least one pillar extending between the ground plane and a top layer of the one or more layers, and low dielectric foam disposed to fill gaps between the ground plane and the one or more layers and to fill gaps between the one or more layers. The apparatus may comprise a corrugated radio frequency choke disposed within the electromagnetic band gap cavity. At least one of the antenna element, the balun element, the electromagnetic band gap cavity, and the radio frequency choke may be fabricated using additive manufacturing.

Abstract: An antenna assembly may include an excitation source configured to generate an excitation signal, an antenna radiator including a first end and an opposing second end, a reference ground disposed corresponding to the antenna radiator, adjacent to the first end and including a first surface adjacent to the first end and an opposing second surface adjacent to the second end, a support body arranged on the second surface of the reference ground and extending along a direction from the first end to the second end, and a conductive sheet arranged on the support body, adjacent and coupled to the second end and configured to transmit the excitation signal from the excitation source to the antenna radiator, the antenna radiator may be configured to generate an electromagnetic signal according to the excitation signal.

Abstract: A communication apparatus is provided. A retaining wall structure electrically connected with a ground plane is disposed between a main circuit board and an antenna. A retaining wall part of the retaining wall structure has a thickness. A distance between the retaining wall part and the main circuit board is a first distance, and a distance between the retaining wall part and the antenna and is a second distance. A distance between the retaining wall and a shielding metal plate is a third distance. The projection of the antenna projected toward the retaining wall in the orthogonal projection direction falls on the retaining wall part.

Abstract: An electronic package includes an antenna structure and an adjustment structure arranged on a carrier structure. The antenna structure includes an antenna body and a feed line that are disposed on different layers and a conductive pillar that interconnects the layers to electrically connect the antenna body and the feed line. The adjustment structure extends from the feed line to improve the bandwidth of the antenna body.

Abstract: The invention relates to a method for obtaining a leaktight electronic device according to which provision is made for steps consisting in: a) placing an electronic module (3) inside a mould (100), b) holding said electronic module away from the walls (101) of said mould with the aid of holding claws (200) each exhibiting an end which protrudes towards the interior of the mould, c) injecting into said mould a thermoplastic material able to harden so as to form a leaktight shell, said holding claws retracting towards the exterior of the mould during the injection of said thermoplastic material.