A communications terminal includes an antenna Which includes a circuit hoard, a radiator, two feeds, and two coupling structures. The radiator is disposed around an outer edge of the circuit board, and a ring-shape slot is formed between the outer edge of the circuit board and the radiator. A first feed is electrically coupled to a first coupling structure, the first coupling structure is coupled to the radiator along one direction, and a current in a first polarization direction is formed on the circuit board by using the radiator and the ring-shape slot. A second feed is electrically coupled to a second coupling structure, the second coupling structure is coupled to the radiator along another direction, and a current in a second polarization direction is formed on the circuit board by using the radiator and the ring-shape slot. A specific included angle is formed between the above two directions.

A vehicular radar sensing system includes a radar sensor configured to be disposed at a vehicle. The radar sensor includes a plurality of antennas that include a plurality of transmitting antennas that transmit radio signals and a plurality of receiving antennas that receive radio signals. The radar sensor provides radar data to a processor that processes the provided radar data to detect an object present in the field of sensing of the radar sensor. At least some antennas of the plurality of antennas include waveguides having T-shaped slots, with each T-shaped slot having a longitudinal portion and a transverse portion that extends transverse from the longitudinal portion, and with a width of the transverse portion being less than a length of the longitudinal portion.

A vehicular radar sensing system includes a radar sensor configured to be disposed at a vehicle. The radar sensor includes a plurality of antennas that include a plurality of transmitting antennas that transmit radio signals and a plurality of receiving antennas that receive radio signals. The radar sensor provides radar data to a processor that processes the provided radar data to detect an object present in the field of sensing of the radar sensor. At least some antennas of the plurality of antennas include waveguides having T-shaped slots, with each T-shaped slot having a longitudinal portion and a transverse portion that extends transverse from the longitudinal portion, and with a width of the transverse portion being less than a length of the longitudinal portion.

Disclosed is a hearing device comprising: a microphone configured to receive sound; a processing unit configured to provide a processed audio signal for compensating for a hearing loss of a user; a wireless communication unit configured for wireless communication; a supporting structure; wherein the supporting structure comprises: an electrically conductive ground layer, an electrically non-conductive opening; a connecting line extending from the wireless communication unit provided at a first side of the opening across or along the opening to a second side of the opening and being interconnected with the electrically conductive ground layer at the second side of the opening; wherein the electrically conductive ground layer is configured to be excited by the connecting line, whereby the electrically conductive ground layer is configured to act as antenna for the wireless communication unit for emission and/or reception of an electromagnetic field.

An antenna is disclosed that includes a ground plane extending in a first direction on a substrate and a radiating element occupying a same plane as the ground plane on the substrate, and coupled to the ground plane, the radiating element comprising a first portion with a first end and a second end extending in a substantially parallel direction to the ground plane, a feed line coupled to the first end of the first portion of the radiating element and extending in a substantially perpendicular direction from the first portion of the radiating element and a second portion having a third end and a fourth end, wherein the third end is coupled to the ground plane and the fourth end is coupled to the radiating element at a point between the first end and the second end.

An antenna is disclosed that includes a ground plane extending in a first direction on a substrate and a radiating element occupying a same plane as the ground plane on the substrate, and coupled to the ground plane, the radiating element comprising a first portion with a first end and a second end extending in a substantially parallel direction to the ground plane, a feed line coupled to the first end of the first portion of the radiating element and extending in a substantially perpendicular direction from the first portion of the radiating element and a second portion having a third end and a fourth end, wherein the third end is coupled to the ground plane and the fourth end is coupled to the radiating element at a point between the first end and the second end.

Methods for manufacturing a vehicle sensor module, such as a RADAR sensor module. In some implementations, the method may comprise forming a sub-assembly comprising a plurality of stacked layers formed into a self-contained radome and adhering the sub-assembly to a first side of an antenna block, the first side comprising a plurality of waveguide grooves formed therein. The sub-assembly may be applied so as to provide a weatherproof seal to each of the plurality of waveguide grooves formed in the antenna block. A PCB layer may be applied to a second side of the antenna block opposite the first side and the antenna block may be seated within a cover such that the second side is protected by the cover and the first side is protected by the self-contained radome.

Methods for manufacturing a vehicle sensor module, such as a RADAR sensor module. In some implementations, the method may comprise forming a sub-assembly comprising a plurality of stacked layers formed into a self-contained radome and adhering the sub-assembly to a first side of an antenna block, the first side comprising a plurality of waveguide grooves formed therein. The sub-assembly may be applied so as to provide a weatherproof seal to each of the plurality of waveguide grooves formed in the antenna block. A PCB layer may be applied to a second side of the antenna block opposite the first side and the antenna block may be seated within a cover such that the second side is protected by the cover and the first side is protected by the self-contained radome.

Various examples and schemes pertaining to a closed-loop antenna with multiple grounding points are described. An apparatus includes an electromagnetic (EM) wave interface device capable of radiating and sensing EM waves. The EM wave interface device includes a feeding port, a first grounding port coupled to an electric ground, and a second grounding port coupled to the electric ground. A first electrically-conductive path connected between the feeding port and the first grounding port forms a closed-loop antenna. A second electrically-conductive path connected between the feeding port and the second grounding port forms a non-radiative closed-loop path. A length of the first electrically-conductive path is greater than a length of the second electrically-conductive path.

The present disclosure provides an electronic device including: a metal housing having four antenna slots, which correspond to four antennas that enable the electronic device to support a fifth generation mobile communication network. The present disclosure can realize antennas that enable an electronic device having a metal back housing to support a fifth generation mobile communication network.