Embodiments of this application disclose an antenna. The antenna may be applied to the field of automatic driving and the field of vehicle-to-everything, and the antenna includes a first radiating element and a first feed line. A first end of the first feed line is connected to the first radiating element. The first radiating element and the first feed line are arranged on a same surface of a dielectric substrate. The first feed line includes a first feed line segment, and an acute angle between the first feed line segment and a current direction of the first radiating element is greater than or equal to 20 degrees, and is less than or equal to 70 degrees. A feeding manner of the antenna is parallel feeding.

A double-sided board includes a first-type conductor layer, a second-type conductor layer, a waveguide-filled dielectric layer and a waveguide. The waveguide-filled dielectric layer is a dielectric layer provided between the first-type conductor layer and the second-type conductor layer. The waveguide is provided in such a manner as to penetrate the waveguide-filled dielectric layer in a direction from one of the first-type conductor layer and the second-type conductor layer to the other of the two conductor layers. A cross section of the waveguide in a plane parallel to the first-type conductor layer has a longitudinal direction and a lateral direction perpendicular to the longitudinal direction. The cross section of the waveguide has, along the longitudinal direction, a central part and two end parts located respectively on two sides of the central part. A lateral length of each of the end parts is larger than a lateral length of the central part.

Multiband multiple input multiple output (MIMO) dual polarised antenna assembly (100) comprising: dual polarised lower band antenna elements (10,20) mounted to ground plane (50) and located proximal to ground plane peripheral sides (50), the location of the lower band antenna elements (10, 20) defining lower band peripheral boundary; dual polarised upper band antenna elements (200, 210) mounted to ground plane (50) and nested within the lower band peripheral boundary; upper feeding network (130) connecting opposing pairs of lower band radiating elements (11, 12, 21, 22) of the dual polarised lower band antenna elements (10,20) and feeds the lower band antenna elements (11, 12, 21, 22), the upper feeding network (130) located within the lower band peripheral boundary; and lower feeding network (140) positioned below upper feeding network (130) and feeds the dual polarised upper band antenna elements (10, 20) via upper feeding network using pair of ultra-wideband duplexers (20A, 20B).

An efficient, low-profile, lightweight fixed-beam (constant angle of departure) aperture antenna. The aperture antenna includes an array of horn radiators coupled to a waveguide diplexer by means of a stripline distribution network. The stripline distribution network is embedded in a printed wiring board (PWB), which PWB is sandwiched between a radiator plate (incorporating the horn radiators) and a diplexer plate. The aperture antenna may further include a backside ground plane made of metal. The diplexer plate and backside cover plate are configured to form the waveguide diplexer. Each horn radiator has a respective circular opening at one end adjacent to the PWB. The diplexer plate includes an array of circular waveguide backshorts which are congruent and respectively aligned with the circular openings of the horn radiators. The radiator plate further includes a rectangular waveguide backshort which is congruent and aligned with a rectangular port of the diplexer plate.

An ultra-wideband dual-polarized tightly coupled bowtie antenna array for ground-based polar ice sounding radar is described. The antenna array has a very large effective aperture to increase the directivity. At the same time, it is lightweight and low profile to minimize the payload and maximize the survey range. In an implementation, the antenna array operates between 180-620 MHz with a fractional bandwidth of 3.4:1. The broadband performance benefits from the tightly coupled antenna elements. A feature of the antenna array is the planar feeding structure without balun. The antenna array element has the microstrip feeding line integrated with one arm of the bowtie antenna. The other arm is directly fed by the microstrip line. By adding a ferrite core around the coax cable for common mode suppression, the bowtie antenna element can be fed differentially without using bulky vertical feeding structure and balun.

Presented herein is an electronic device comprising a Printed Circuit Board (PCB) including a first circuit board plane including a plurality of first patch antenna elements and a second circuit board plane including a plurality of second patch antenna elements, a communication module that transmits and receives a signal of a first frequency band using the plurality of first patch antenna elements, and transmits and receives a signal of a second frequency band higher than the first frequency band using the plurality of second patch antenna elements, a processor connected to the communication module, wherein central points of the plurality of first patch antenna elements are spaced apart from one another to have a first distance and central points of the plurality of second patch antenna elements are spaced apart from one another to have a second distance shorter than the first distance, and wherein the plurality of second patch antenna elements are arranged such that the central points of the plurality of second patch antenna elements are disposed to be closer to a central axis connecting a first central point that is a center of gravity of the first circuit board plane and a second central point that is a center of gravity of the second circuit board plane in a direction passing through the printed circuit board from a first surface to a second surface of the printed circuit board, than central points of the plurality of first patch antenna elements.

A coupler comprising a silicon substrate with one or more double slot radiators configured to transmit or receive an RF signal, a slot balun circuit configured to isolate the RF signal, and a grounded coplanar waveguide configured to propagate the RF signal in a horizontal direction. The coupler can be included on an integrated chip with a second coupler and the chip can be positioned over two waveguides such that each coupler is positioned within the center of each waveguide aperture.

A system for EMNZ metamaterial-based direct antenna modulation. The system includes a signal generator, a metamaterial switch and an antenna. The signal generator may is configured to generate a microwave signal. The metamaterial switch is configured to generate a modulated microwave signal from the microwave signal. The modulated microwave signal is generated by selectively passing the microwave signal through the metamaterial switch. The metamaterial switch includes a first conductive plate and a first loaded conductive plate. The first loaded conductive plate includes a second conductive plate and a first monolayer graphene. The first monolayer graphene includes a first tunable conductivity. The first monolayer graphene is positioned between the first conductive plate and the second conductive plate. An effective permittivity of the metamaterial switch is configured to be adjusted to a predetermined value. The effective permittivity of the metamaterial switch is adjusted responsive to tuning the first tunable conductivity.

A non-contact object and/or gesture detection system includes at least one sensor configured to sense an object or motion within a field of view (FOV) using radio frequency radiation. Various sensor and brackets are provided which may allow a position and/or tilt of the sensor to be adjusted for controlling the FOV. A sensor housing includes a vent filter that breathable but impermeable to liquids. Various antenna designs are provided to provide desired FOV sizes and shapes, particularly for optimizing a radiation pattern that is relatively wide and shallow. A steerable antenna layout is also provided for controlling the location of the FOV without an adjustable bracket. A sensor housing including a projector mount for an icon projector is provided. A seal prevents debris from entering between the antenna and the bumper.

The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate after a 4th generation (4G) communication system such as long-term evolution (LTE). The present disclosure relates to an antenna device, and the antenna device may include an antenna board including a plurality of antenna elements and a coupler for extracting part of a signal transmitted to the plurality of the antenna elements, and a calibration board disposed under the antenna board, and including a correction circuit for correcting an error using the part of the signal extracted by the coupler, the coupler may include a first transmission line connected with the plurality of the antenna elements, and a second transmission line disposed to be capacitively connected with the first transmission line, and the second transmission line may include a third transmission line and a fourth transmission line spaced apart from each other to be parallel to the first transmission line based on the first transmission line, and a fifth transmission line disposed to connect with the third transmission line and the fourth transmission line with respective terminal ends, and to surround a via hole penetrating the antenna board in a vertical direction.