Communications terminal

Patent metadata

Field	Value
Publication number	US-11283154-B2
Application number	US-201616304970-A
Country	US
Kind code	B2
Filing date	May 28, 2016
Priority date	May 28, 2016
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

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.

First claim

The invention claimed is:

1. An antenna comprising:
a circuit board comprising a first side and a second side, wherein the first side comprises a first protrusion part, and wherein the second side comprises a second protrusion part;
a radiator disposed around an outer edge of the circuit board, wherein a ring-shape slot is formed between the outer edge of the circuit board and the radiator, wherein a first current in a first polarization direction is formed on the circuit board using the radiator and the ring-shape slot, and wherein a second current in a second polarization direction is formed on the circuit board using the radiator and the ring-shape slot;
a first coupling structure coupled to the radiator along a first direction, wherein the first side is opposite to the first coupling structure;
a first feed electrically coupled to the first coupling structure;
a second coupling structure coupled to the radiator along a second direction, wherein the second side is opposite to the second coupling structure;
a second feed electrically coupled to the second coupling structure, wherein a specific included angle is formed between the first direction and the second direction;
a first capacitive load groove formed between the first protrusion part and the radiator; and
a second capacitive load groove formed between the second protrusion part and the radiator,
wherein the first capacitive load groove and the second capacitive load groove are configured to implement capacitive loading between the radiator and the circuit board.

2. The antenna of claim 1 , wherein the first coupling structure comprises:
a first feed-in end;
a first radiation arm, wherein the first feed is electrically coupled to the first radiation arm using the first feed-in end;
a first coupling capacitor formed between the first radiation arm and the radiator, wherein the second coupling structure comprises a second feed-in end and a second radiation arm, and wherein the second feed is electrically coupled to the second radiation arm using the second feed-in end; and
a second coupling capacitor formed between the second radiation arm and the radiator.

3. The antenna of claim 1 , wherein the first coupling structure comprises a first coupling circuit, wherein one end of the first coupling circuit is electrically coupled to the first feed and the other end of the first coupling circuit is electrically coupled to the radiator to feed a third current from the first feed into the radiator by coupling, wherein the second coupling structure comprises a second coupling circuit, and wherein one end of the second coupling circuit is electrically coupled to the second feed and the other end of the second coupling circuit is electrically coupled to the radiator to feed a fourth current from the second feed into the radiator by coupling.

4. The antenna of claim 1 , wherein the first protrusion part is electrically coupled to the radiator using a first tuned circuit, wherein the second protrusion part is electrically coupled to the radiator using a second tuned circuit, and wherein the first tuned circuit and the second tuned circuit are configured to adjust a radiation property of the antenna.

5. The antenna of claim 1 , wherein the first protrusion part is electrically coupled to the radiator using a first tuned circuit, and wherein the first tuned circuit is configured to adjust a radiation property of the antenna.

6. The antenna of claim 1 , wherein the second protrusion part is electrically coupled to the radiator using a second tuned circuit, and wherein the second tuned circuit is configured to adjust a radiation property of the antenna.

7. The antenna of claim 1 , wherein the circuit board further comprises at least one opening and at least one stub, and wherein the at least one opening and the at least one stub are disposed on an edge of the circuit board and are configured to adjust an isolation of the antenna.

8. The antenna of claim 1 , wherein the circuit board further comprises at least one opening or at least one stub, and wherein the at least one opening or the at least one stub is disposed on an edge of the circuit board and is configured to adjust an isolation of the antenna.

9. The antenna of claim 1 , wherein the first current in the first polarization direction and the second current in the second polarization direction are mutually quasi-orthogonal and complementary.

10. The antenna of claim 1 , further comprising a dielectric layer, wherein the dielectric layer is disposed at a bottom of the circuit board, and wherein an outer edge of the dielectric layer is coupled to the radiator for adjusting a radiation property of the antenna.

11. The antenna of claim 1 , wherein the antenna is a multi-input multi-output antenna.

12. The antenna of claim 1 , wherein the first current in the first polarization direction and the second current in the second polarization direction have a same frequency.

13. A terminal comprising:
a body; and
an antenna system supported by the body, wherein the antenna system comprises a plurality of antennas, and wherein each antenna comprises:
a circuit board comprising a first side and a second side, wherein the first side comprises a first protrusion part, and wherein the second side comprises a second protrusion part;
a radiator disposed around an outer edge of the circuit board, wherein a ring-shape slot is formed between the outer edge of the circuit board and the radiator, wherein a first current in a first polarization direction is formed on the circuit board using the radiator and the ring-shape slot, and wherein a second current in a second polarization direction is formed on the circuit board using the radiator and the ring-shape slot;
a first coupling structure coupled to the radiator along a first direction, wherein the first side is opposite to the first coupling structure;
a first feed electrically coupled to the first coupling structure;
a second coupling structure coupled to the radiator along a second direction, wherein the second side is opposite to the second coupling structure;
a second feed electrically coupled to the second coupling structure, wherein a specific included angle is formed between the first direction and the second direction;
a first capacitive load groove formed between the first protrusion part and the radiator; and
a second capacitive load groove formed between the second protrusion part and the radiator,
wherein the first capacitive load groove and the second capacitive load groove are configured to implement capacitive loading between the radiator and the circuit board.

14. The terminal of claim 13 , wherein the first coupling structure comprises:
a first feed-in end;
a first radiation arm, wherein the first feed is electrically coupled to the first radiation arm using the first feed-in end;
a first coupling capacitor formed between the first radiation arm and the radiator, wherein the second coupling structure comprises a second feed-in end and a second radiation arm, and wherein the second feed is electrically coupled to the second radiation arm using the second feed-in end; and
a second coupling capacitor formed between the second radiation arm and the radiator.

15. The terminal of claim 13 , wherein the first coupling structure comprises a first coupling circuit, wherein one end of the first coupling circuit is electrically coupled to the first feed and the other end of the first coupling circuit is electrically coupled to the radiator to feed a third current from the first feed into the radiator by coupling, wherein the second coupling structure compr

Assignees

• Huawei Device Co Ltd

Inventors

• Wen Dingliang
• Hao Yang
• Wang Hanyang
• Zhou Hai
• Sun Shuhui

Classifications

• H01Q13/10

  Resonant slot antennas · CPC title

• H01Q7/00

  Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop · CPC title

• G04R60/06

  Antennas attached to or integrated in clock or watch bodies · CPC title

• H01Q1/273

  Adaptation for carrying or wearing by persons or animals · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title