Antenna

Patent metadata

Field	Value
Publication number	US-2023387587-A1
Application number	US-202318305469-A
Country	US
Kind code	A1
Filing date	Apr 24, 2023
Priority date	May 26, 2022
Publication date	Nov 30, 2023
Grant date	—

Abstract

An antenna includes a plurality of antenna elements each respectively operable as a radiator of electromagnetic waves, and a decoupler arrangement operably coupled with the plurality of antenna elements. The decoupler arrangement is configured to prevent, reduce, or substantially eliminate mutual coupling of at least two of the plurality of antenna elements when at least one of the plurality of antenna elements is operated as radiator.

First claim

1 . An antenna comprising:
a plurality of antenna elements each respectively operable as a radiator of electromagnetic waves; and a decoupler arrangement operably coupled with the plurality of antenna elements and configured to prevent, reduce, or substantially eliminate mutual coupling of at least two of the plurality of antenna elements when at least one of the plurality of antenna elements is operated as radiator.

2 . The antenna of claim 1 , wherein the decoupler arrangement is configured to prevent, reduce, or substantially eliminate mutual coupling of all of the plurality of antenna elements when one or more of the plurality of antenna elements are operated as radiator of electromagnetic waves.

3 . The antenna of claim 2 , wherein the decoupler arrangement comprises a dielectric decoupler arrangement.

4 . The antenna of claim 3 ,
wherein the dielectric decoupler arrangement provides one or more boundaries operable to scatter electromagnetic waves provided by the plurality of antenna elements such that: for each respective one of the plurality of antenna elements, when the antenna element operates as radiator of electromagnetic waves, the dielectric decoupler arrangement defines one or more respective neutral locations that are less or substantially not susceptible to the corresponding electromagnetic waves provided by the radiator; and wherein the plurality of antenna elements are disposed at the neutral locations.

5 . The antenna of claim 4 , wherein the dielectric decoupler arrangement comprises a dielectric block that: receives or substantially encloses the plurality of antenna elements, and provides the one or more boundaries.

6 . The antenna of claim 5 , wherein the dielectric block comprises:
a body; and one or more holes formed in the body and receiving the plurality of antenna elements.

7 . The antenna of claim 6 ,
wherein the one or more holes comprises a plurality of holes each receiving a respective one of the plurality of antenna elements; and wherein the plurality of holes are disposed at the neutral locations.

8 . The antenna of claim 7 , wherein the plurality of holes are angularly spaced apart on an imaginary circle in plan view.

9 . The antenna of claim 8 , wherein the plurality of holes are angularly spaced apart generally evenly on the imaginary circle in plan view.

10 . The antenna of claim 7 , wherein the dielectric block is rotationally symmetric.

11 . The antenna of claim 7 , wherein the dielectric block is reflectively symmetric.

12 . The antenna of claim 11 ,
wherein the body consists of two portions or halves disposed about a plane of symmetry; and wherein at least one of the plurality of holes is formed in each respective one of the two portions or halves.

13 . The antenna of claim 12 , wherein the two portions or halves are shaped as right prisms.

14 . The antenna of claim 13 , wherein the two portions or halves are shaped as like right squared or rectangular prisms.

15 . The antenna of claim 13 ,
wherein the two portions or halves are shaped as like right trapezoidal prisms, and wherein short side faces of the right trapezoidal prisms are coincident with the plane of symmetry such that in plan view the two portions or halves each respectively generally tapers to narrow towards the plane of symmetry.

16 . The antenna of claim 13 ,
wherein the two portions or halves are shaped as like right triangular prisms, and wherein a lateral face of one right triangular prism and a lateral face of another right triangular prism are coincident with the plane of symmetry such that in plan view the two portions or halves each respectively generally tapers to narrow away from the plane of symmetry.

17 . The antenna of claim 7 , wherein the dielectric block is rotationally symmetric and reflectively symmetric.

18 . The antenna of claim 7 ,
wherein the dielectric block further comprises a through-hole formed in the body and arranged generally centrally of the body; and wherein the plurality of holes are disposed around the through-hole.

19 . The antenna of claim 5 ,
wherein the plurality of antenna elements comprises two antenna elements; wherein the dielectric block comprises:
a body; and
two holes formed in the body and arranged on an imaginary circle in plan view, wherein each of the two holes receives a respective one of the two antenna elements; and
wherein the dielectric block is rotationally symmetric and reflectively symmetric.

20 . The antenna of claim 5 ,
wherein the plurality of antenna elements comprises four antenna elements; wherein the dielectric block comprises:
a body;
a through-hole formed in the body and arranged generally centrally of the body; and
four holes formed in the body, the four holes are arranged on an imaginary circle and around the through-hole in plan view, wherein each of the four holes receives a respective one of the four antenna elements; and
wherein the dielectric block is rotationally symmetric and reflectively symmetric.

21 . The antenna of claim 20 ,
wherein the body consists of two halves disposed about a plane of symmetry; and wherein each of the two halves respectively includes two of the four holes and half of the through-hole.

22 . The antenna of claim 21 ,
wherein the body is shaped as a right squared or rectangular prism with a first face diagonal and a second face diagonal in plan view; and wherein, in plan view, two of the four antenna elements are disposed on the first face diagonal and another two of the four antenna elements are disposed on the second face diagonal.

23 . The antenna of claim 22 , wherein the through-hole is shaped as a right squared or rectangular prism, which, in plan view, has a third face diagonal arranged at an acute angle to the first face diagonal and a fourth face diagonal arranged at an acute angle to the second face diagonal.

24 . The antenna of claim 1 ,
wherein the antenna further comprises a ground plane, and wherein the plurality of antenna elements are monopole antenna elements each respective operable as a monopole radiator.

25 . The antenna of claim 12 ,
wherein the antenna further comprises a ground plane, and wherein the dielectric block is arranged generally centrally on the ground plane, and the plane of symmetry is generally perpendicular to the ground plane.

26 . The antenna of claim 1 , wherein the antenna further comprises a plurality of feed ports each for a respective one of the plurality of antenna elements.

Assignees

• Univ City Hong Kong

Inventors

• Leung Kwok Wa
• Yang Chen
• Lu Kai

Classifications

• H01Q1/521 Primary

  reducing the coupling between adjacent antennas · CPC title

• H01Q9/30

  with feed to end of elongated active element, e.g. unipole (H01Q9/44 takes precedence) · CPC title

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q1/40

  Radiating elements coated with or embedded in protective material · CPC title

• H01Q21/28

  Combinations of substantially independent non-interacting antenna units or systems {(multiple beam H01Q25/00)} · CPC title