An antenna array including a radiating structure formed from an array of radiating elements forming self-complementary patterns, the radiating surface separated from a ground plane by a dielectric layer, the antenna comprises an array of metallized vias passing through the dielectric layer between the radiating surface and the ground plane, each via being positioned facing a given point, referred to as the particular point, of a radiating element. The particular points may be located between two consecutive electrical supply points of a radiating element.

The present disclosure provides a broadband dual-polarized solar cell antenna and an antenna array. The broadband dual-polarized solar cell antenna includes an antenna dipole layer, an isolation layer, a solar cell layer, and a ground that are arranged sequentially from top to bottom, where the antenna dipole layer is connected to the ground and a radio frequency (RF) coaxial connector through a metal feeding probe structure, the solar cell layer is placed on the ground, the isolation layer is located between the antenna dipole layer and the solar cell layer, and the isolation layer is made of a transparent material. The present disclosure is small in sunlight shielding and high in transparency, and has a broadband dual-polarized wide-angle scanning capability, which ensures performance of the antenna and power generation efficiency of the solar cell, and is highly applicable in engineering.

An antenna configured to transmit or receive a signal is provided. The antenna includes a substantially transparent base substrate and an antenna electrode on the substantially transparent base substrate. The antenna electrode includes a substantially transparent conductive layer, and a first conductive line abutting an edge portion of the substantially transparent conductive layer and electrically connected to the edge portion of the substantially transparent conductive layer. An electrical conductivity of the first conductive line is greater than an electrical conductivity of the substantially transparent conductive layer.

An antenna device may include a ground plane, a first planar antenna element spaced above the ground plane and having an opening, and a second planar antenna element spaced above the first planar antenna element on a side of the first planar antenna element opposite the ground plane. The second planar antenna element may have a size smaller than the first planar antenna element. The antenna device may include a coaxial feed with an outer conductor, and an inner conductor surrounded by the outer conductor and extending outwardly from an end of the outer conductor. The outer conductor may be coupled to the ground plane and the first planar antenna element. The inner conductor may extend through the opening in the first planar antenna element and may be coupled to the second planar antenna element.

An antenna for vehicle for receiving electric waves from a vehicle front side is attached to an internal side of a window glass for vehicle. The antenna includes a first radiator having a shape of a plate, at least a part of the first radiator being arranged separated from the window glass for vehicle; and a second radiator arranged separated from the first radiator, and arranged so as to sandwich at least a part of the first radiator between the second radiator and the window glass for vehicle.

Antenna elements are described that may include a radiator, a feeding portion, a first impedance transformer, a balun, and a second impedance transformer. The first impedance transformer, balun, and second impedance transformer may be disposed above a ground plane of an antenna array to reduce a bulk of the array. The array can also include a dielectric top layer for loading apertures of the antenna array. The antenna elements can also include anomaly suppressors can be provided to cancel common-mode resonances from the radiators.

A wearable audio device in accordance with a particular embodiment of the present technology includes an earpiece, a speaker, an antenna, and processing circuitry. The earpiece includes a housing within which the speaker and the processing circuitry are disposed. The antenna conformably extends along a perimeter portion of the housing. The processing circuitry is configured to receive audio content from an audio player via the antenna. The processing circuitry is also configured to generate sound corresponding to the audio content via the speaker. The antenna is exposed and is not a loop antenna. The audio device also includes a circuit board supporting at least some of the processing circuitry within the housing. The audio content travels from the antenna to the circuit board without travelling through any flexible wires.

A dual band printed antenna that includes a substrate including a first and a second surfaces opposite to each other and conductive holes, a first and a second drivers, a first and a second reflectors and a transmission line is provided. The first driver is disposed on the first surface to generate a radiation pattern of a first frequency band. The first reflector is disposed on the first surface and apart from the first driver. The second driver is disposed on the second surface to generate a radiation pattern of a second frequency band and electrically coupled to the first driver through the conductive holes. The reflector is disposed on the second surface, corresponding to a position of the first driver and apart from the second driver. The transmission line is disposed on the first surface and coupled to a feeding point and a ground point of the first driver.

A system having a set of power amplifiers each having a primary inductive structure configured to provide an output signal. A secondary inductive structure is configured to inductively couple to each of the primary inductive structures. A transmission line is provided with a signal trace and a ground trace. The signal trace of the transmission line is connected to a first end of the secondary inductive structure. A return path from a second end of the secondary inductive structure is coupled via a resonant network to the ground trace of the transmission line, in which the return path is spaced away from the secondary inductive structure to minimize inductive coupling to the primary structures.

A dipole antenna array element using crossed dipoles is provided. The arms of the crossed dipoles are spaced apart from a ground plane. The length of the arms of the crossed dipoles, as well as the height of the array element, is dependent on the lowest wavelength of signal for which the element is to be used with. To adjust the impedance of the antenna array element, a strip of conductive material is used to enclose an area about the arms of the dipoles. A patch component can also be used with the arms being between the patch component and the ground plane.