Abstract: Method and apparatus for making antennas and antenna components suitable for wideband transmission and reception are disclosed. Material accretion devices or apparatus such as a 3D printer can be used to form the antennas and antenna components. The antenna and antenna components can include pleated and/or self-similar features.

Abstract: A slot array antenna includes: an electrically conductive member having an electrically conductive surface and slots therein, the slots being arrayed in a first direction which extends along the conductive surface; a waveguide member having an electrically conductive waveguide face which opposes the slots and extends along the first direction; and an artificial magnetic conductor extending on both sides of the waveguide member. At least one of the conductive member and the waveguide member includes dents on the conductive surface and/or the waveguide face, the dents each serving to broaden a spacing between the conductive surface and the waveguide face relative to any adjacent site. The dents include a first, second, and third dents which are adjacent to one another and consecutively follow along the first direction. A distance between centers of the first and second dents is different from a distance between centers of the second and third dents.

Abstract: A vehicle includes a windshield, at least a surface on a vehicle interior side thereof being a surface of glass; an antenna part provided in the vehicle interior and for transmitting a transmission wave, which is a radio wave in a millimeter waveband, from the vehicle interior through the windshield to the outside; and a reflection suppression layer including a dielectric layer that adheres to the surface on the antenna part side of the windshield. The dielectric layer has a refractive index lower than that of the glass. The dielectric layer has a thickness that allows reflection of the transmission wave to be suppressed by interference between a reflected wave generated by reflection of the transmission wave on an interface between the dielectric layer and the windshield, and a reflected wave generated by reflection of the transmission wave on a surface on the antenna part side of the dielectric layer.

Abstract: An electronic apparatus includes a display; and an antenna including a first element without power feeding that is a structural component made of metal and is disposed on the display or above a display surface of the display in a display direction, a second element which is disposed below the first element and is connected to a power supply, and a GND plate that is disposed below the second element, wherein the first element and the second element are electromagnetically coupled.

Abstract: A loop antenna 1 includes: a first electrode terminal 2c; a second electrode terminal 2d arranged to make a pair with the first electrode terminal 2c; and a loop-shaped member 2 which has one end connected to the first electrode terminal 2c and the other end connected to the second electrode terminal 2d, is wound a plurality of times, and is made of a conductive material. The first electrode terminal 2c and the second electrode terminal 2d are arranged so as to make a pair with respect to a center line 3 of the loop-shaped member 2. Further, the loop-shaped member 2 includes a first loop-shaped member 2a, a second loop-shaped member 2b, and an intersection part 2e. The intersection part 2e is arranged on the center line 3 in a plan view, and the loop-shaped member 2 is continuously connected and formed to be symmetrical with respect to the center line 3.

Abstract: A lens design method is disclosed for designing a lens to reshape an actual far-field radiation pattern of a radiation source, such as a spiral antenna, to a preferred far-field radiation pattern. The method comprises:—determining a preferred far-field radiation pattern of the radiation source;—deriving a corresponding near-field radiation pattern from the preferred far-field radiation pattern;—determining an actual near-field pattern of the radiation source;—mapping an electric field and a magnetic field of the actual near-field radiation pattern to the derived near-field radiation pattern using a transfer relationship, the transfer relationship comprising material parameters which characterize the lens; and,—determining the material parameters.

Abstract: A phased array antenna panel includes a first plurality of antennas, a first radio frequency (RF) front end chip, a second plurality of antennas, a second RF front end chip, and a combiner RF chip. The first and second RF front end chips receive respective first and second input signals from the first and second pluralities of antennas, and produce respective first and second output signals based on the respective first and second input signals. The combiner RF chip can receive the first and second output signals and produce a power combined output signal that is a combination of powers of the first and second output signals. Alternatively, a power combiner can receive the first and second output signals and produce a power combined output signal, and the combiner RF chip can receive the power combined output signal.

Abstract: An apparatus comprising at least one antenna for transmission and/or reception of circularly polarized electromagnetic radiation. The antenna includes a radiating element, a static element, and a single feed line. The single feed line is coupled between the radiating element and a circuit that drives the antenna. The radiating element has a non-symmetrical outer perimeter shape. The radiating element may include an aperture. The antenna may further include a ground element and a supplemental ground feed structure, the supplemental ground feed structure located between the radiating element and the ground element and the radiating element located between the supplemental ground feed structure and the static element.

Abstract: An electronic device and an antenna of an electronic device are provided. The electronic device includes a metal shell, and the antenna includes: a radiating surface formed by metal shell and having a slot group penetrated therethrough in an up and down direction of the metal shell, the slot group including a plurality of slots; a medium filling layer including a body part disposed on a lower surface of the metal shell and a plurality of filling parts disposed on an upper surface of the body part and filled in the plurality of slots respectively; and an excitation sheet disposed on a lower surface of the medium filling layer.

Abstract: A data communications apparatus including a case having a base and a lid connectable to the base, the lid movable with respect to the base between an open position and a closed position. The case has an inner surface. A power supply is secured inside the case. A router device is secured inside the case, the router device selectively receiving power from the power supply. An antenna array is in electrical communication with the router device, the antenna array including at least two cellular antennas and at least two wireless networking antennas.

Abstract: Various embodiments are described that relate to a patch antenna. Portions of a patch antenna, such as a patch antenna element and a probe feed wire can produce an impedance that is undesirable. To compensate for this, a parasitic feed pad can be aligned with the patch antenna element to create a capacitor. This capacitor produces a capacitance that negates the impedance. It can be preferred for the capacitance to be such that there is no excess capacitance and no excess impedance.

Abstract: An antenna apparatus can include a transmission medium that is positioned within layers of an antenna apparatus that are positioned adjacent to a first upper layer that is configured to include a signal receiving and transmission element (e.g. an antenna, patch antenna, etc.). The transmission medium can include or otherwise be connected to one or more resonators so that only a signal within a pre-selected band is passable through the transmission band. Any signal in a band outside of the pre-selected band may not be passable through the transmission medium due at least in part to the resonators. In some embodiments, the transmission medium may be part of a stripline or a microstrip. Embodiments of the apparatus may also be configured to block backward radiation emittable from the antenna to help prevent a body of a person near that device from absorbing such radiation.

Abstract: An antenna configured to receive radiation at global navigation satellite system (GNSS) frequencies includes a dielectric substrate, a circular patch overlaying the dielectric substrate, one or more impedance transformers, and a metamaterial ground plane. The metamaterial ground plane includes a plurality of conductive patches and a cavity. The conductive patches are arranged along a first plane on a backside of the dielectric substrate and are separated from the circular patch by the dielectric substrate. The cavity includes a ground plane and a conductive fence. The ground plane is arranged along a second plane below the first plane. The ground plane is electrically coupled to at least a first portion of the plurality of conductive patches by conductive vias. The conductive fence is spaced from the backside of the dielectric substrate and from the plurality of conductive patches by a gap.

Abstract: A tensor impedance surface including a plurality of unit cells, wherein each unit cell includes a dielectric having a thickness, a first surface of the dielectric having a metallic pattern on the first surface, and at least one lumped element coupled between a first point on the metallic pattern and a second point on the metallic pattern. Each unit cell of the plurality of unit cells has a first thickness and has an identical metallic pattern. Each unit cell of the plurality of unit cells is adjacent to one or more unit cells of the plurality of the unit cells.

Abstract: An automotive glass antenna includes (a) a defogger having first and second bus bars; (b) a first L-shape auxiliary element connected to a lower end of the first bus bar; (c) a second L-shape auxiliary element connected to an upper end of the second bus bar; (d) a feed point provided at a position near an upper portion of the first bus bar or a lower portion of the second bus bar; and (e) a main element that includes a main vertical element extending along an outside of the first or second bus bar to achieve a capacitive coupling therewith and a main horizontal element extending from the feed point in a substantially horizontal direction. This antenna is capable of receiving FM radio broadcast waves with high gain, even if it is installed in a limited blank space around the defogger.

Abstract: An apparatus comprising at least one antenna for transmission and/or reception of circularly polarized electromagnetic radiation. The antenna includes a radiating element and a single feed line. The single feed line is coupled between the radiating element and a circuit that drives the antenna. The radiating element has a non-symmetrical outer perimeter shape. The radiating element may include an aperture. The antenna may further include a ground element and a supplemental ground feed structure, the supplemental ground feed structure located between the radiating element and the ground element.

Abstract: A low-profile multi-band antenna for telematics applications is described, where the antenna has multiple resonant frequencies. A single feed connects multiple transceivers to the antenna. The antenna has a height less than a centimeter and a surface area of around 60 square centimeters. The resonant frequencies of the antenna are determined by a center sub-patch and additional sub-patches that surround the center sub-patch. Ferrites, placed between the sub-patches and a ground plane, are used for tuning the resonant frequencies.

Abstract: Method and apparatus for making volumetric electromagnetic components are disclosed. Material accretion devices or apparatus such as a 3D printer can be used to form the volumetric electromagnetic components. The volumetric electromagnetic components can include folded and/or self-similar features such as fractals. The volumetric electromagnetic components can include conductive and/or non-conductive materials. EM energy absorbing systems are described as having a volumetric electromagnetic component embedded within a dielectric material.

Abstract: An antenna comprising first and second radiating elements disposed in a collinear configuration on a dielectric substrate, wherein the first radiating element comprises a feed point. A first inter-element phasing section is conductively coupled to the first and second radiating elements, and has a meander line configuration adapted such that the first and second radiating elements radiate electro-magnetic radiation in-phase over a first range of frequencies. Third and fourth radiating elements are disposed in a collinear configuration on the substrate, and the third radiating element is electromagnetically coupled in parasitic relation to the first radiating element. A second inter-element phasing section is conductively coupled to the third and fourth radiating elements, and has a meander line configuration adapted such that the third and fourth radiating elements radiate electromagnetic radiation in-phase over a second range of frequencies which is different from the first range of frequencies.

Abstract: An antenna apparatus includes: an antenna radiator, at least one antenna cable trough, a feedpoint, and at least one first protruding metal strip; where the at least one antenna cable trough is disposed on the antenna radiator; the at least one antenna cable trough extends along a top edge to a bottom edge of the antenna radiator; the feedpoint is further disposed on the antenna radiator, and the feedpoint is disposed at an end of the bottom edge of the antenna radiator and is near a side edge of the antenna radiator; and the at least one first protruding metal strip is inserted in the antenna cable trough and is separated from the antenna radiator.