Antenna and communication system

Patent metadata

Field	Value
Publication number	US-12166292-B2
Application number	US-202117772841-A
Country	US
Kind code	B2
Filing date	Jun 25, 2021
Priority date	Oct 30, 2020
Publication date	Dec 10, 2024
Grant date	Dec 10, 2024

Abstract

An antenna according to an embodiment of the present disclosure includes a first substrate, the first substrate includes: a first base substrate; at least one first radiation unit on a side of the first base substrate; a first electrode layer on a side of the first base substrate away from the at least one first radiation unit; and at least one second radiation unit on a side of the at least one first radiation unit away from the first electrode layer; wherein an orthographic projection of each second radiation unit on the first base substrate at least partially overlaps an orthographic projection of one first radiation unit on the first base substrate; and an orthographic projection of the at least one first radiation unit on the first base substrate is within an orthographic projection of the first electrode layer on the first base substrate.

First claim

What is claimed is:

1. An antenna, comprising a first substrate,
wherein the first substrate comprises:
a first base substrate;
at least one first radiation unit on a side of the first base substrate;
a first electrode layer on a side of the first base substrate away from the at least one first radiation unit; and
at least one second radiation unit on a side of the at least one first radiation unit away from the first electrode layer,
wherein an orthographic projection of each of the at least one second radiation unit on the first base substrate at least partially overlaps an orthographic projection of a corresponding one of the at least one first radiation unit on the first base substrate; and
an orthographic projection of the at least one first radiation unit on the first base substrate is within an orthographic projection of the first electrode layer on the first base substrate,
wherein the antenna further comprises a second electrode layer, which is in a same layer as the at least one first radiation unit, wherein the orthographic projection of the at least one first radiation unit on the first base substrate does not overlap an orthographic projection of the second electrode layer on the first base substrate.

2. The antenna according to claim 1 , wherein
the first base substrate comprises a first side extending in a first direction;
the second electrode layer comprises at least one second sub-electrode;
each of the at least one second sub-electrode is on a side of one of the at least one first radiation unit close to the first side;
each of the at least one second sub-electrode comprises a first structure and a second structure;
the first structure extends along the first direction, and the second structure extends along a second direction; and
the first direction intersects with the second direction.

3. The antenna according to claim 2 , further comprising
a first feeding unit, which is in a same layer as the at least one first radiation unit; wherein
the first feeding unit comprises a plurality of first feeding lines, and
each of the at least one first radiation unit is electrically connected to at least one of the plurality of first feeding lines.

4. The antenna according to claim 3 , wherein
every two of the plurality of first feeding lines are electrically connected to one of the at least one first radiation unit, and
for each of the at least one first radiation unit, one of the at least one second sub-electrode is between the two first feeding lines electrically connected to the first radiation unit, to isolate signals in the two first feeding lines from each other.

5. The antenna according to claim 1 , further comprising
a third electrode layer, which is in a same layer as the at least one second radiation unit, wherein
an orthographic projection of the at least one second radiation unit on the first base substrate does not overlap an orthographic projection of the third electrode layer on the first base substrate.

6. The antenna according to claim 5 , wherein
the first base substrate further comprises a second side extending in a first direction;
an orthographic projection of the third electrode layer on the first base substrate is on a side of the first base substrate close to the second side;
the third electrode layer comprises a main body structure, and a first extension structure and a second extension structure which are connected to both sides of the main body structure, respectively,
the main body structure extends along the first direction, and the first extension structure and the second extension structure both extend along a second direction; and
wherein the first direction and the second direction intersect with each other.

7. The antenna according to claim 1 , further comprising
a first feeding unit, which is in a same layer as the at least one first radiation unit; wherein
the first feeding unit comprises a plurality of first feeding lines, and
every two of the plurality of first feeding lines are electrically connected to one of the at least one first radiation unit.

8. The antenna according to claim 7 , wherein
each of the at least one first radiation unit has a shape of a centrosymmetric pattern having a symmetry center;
for each of the at least one first radiation unit, a position where one of the two first feeding lines is connected to the first radiation unit is a first connecting point, and a position where the other of the two first feeding lines is connected to the first radiation unit is a second connecting point, and
wherein for each of the at least one first radiation unit, an extending direction of a connecting line between the first connecting point and the symmetry center of the first radiation unit intersects with an extending direction of a connecting line between the second connecting point and the symmetry center of the first radiation unit.

9. The antenna according to claim 7 , further comprising a second substrate; wherein
the second substrate comprises a second base substrate and a second feeding unit on a side of the second base substrate and electrically connected to the first feeding unit.

10. The antenna according to claim 9 , wherein
an included angle is between the second substrate and the first substrate.

11. The antenna according to claim 9 , wherein
the second feeding unit comprises a first feeding sub-unit and a second feeding sub-unit, each of the first feeding sub-unit and the second feeding sub-unit comprises one first port and at least one second port; and
for each of the at least one first radiation unit, one of the two first feeding lines electrically connected to the first radiation unit is electrically connected to one of the at least one second port of the first feeding sub-unit, and different first feeding lines are connected to different second ports of the first feeding sub-unit, respectively; and the other of the two first feeding lines electrically connected to the first radiation unit is electrically connected to one of the at least one second port of the second feeding sub-unit, and different first feeding lines are connected to different second ports of the second feeding sub-unit, respectively.

12. The antenna according to claim 1 , further comprising
a third substrate, which is on a side of the first substrate away from the first electrode layer;
wherein the third substrate comprises a third base substrate; and
wherein the at least one second radiation unit is on a side of the third base substrate.

13. The antenna according to claim 1 , further comprising
a fourth substrate, which is on a side of the first substrate away from the at least one first radiation unit;
wherein the fourth substrate comprises a fourth base substrate; and
wherein the first electrode layer is on a side of the fourth base substrate close to the first substrate.

14. The antenna according to claim 1 , wherein
the first substrate further comprises a first metal mesh layer, which is on a side of the first base substrate away from the first electrode layer;
the first metal mesh layer comprises the at least one first radiation unit;
the first metal mesh layer has at least one first cutout therein, and
each of the at least one first cutout separates out one of the at least one first radiation unit.

15. The antenna according to claim 1 , further comprising
a third substrate, which is on a side of the first substrate away from the first electrode layer;
wherein the third substrate comprises a third base substrate and a second metal mesh layer on a side of the third base substrate away from the firs

Assignees

• Beijing Boe Sensor Technology Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Feng Chunnan
• Zhang Zhifeng
• Li Yong
• Zhang Haoyang
• Che Chuncheng
• Du Jingjun
• Wang Jiaqiang
• Qu Feng

Classifications

• H01Q21/08 Primary

  the units being spaced along or adjacent to a rectilinear path {(waveguide fed H01Q21/0037)} · CPC title

• H01Q9/045

  with particular feeding means (for circular polarisation H01Q9/0428) · CPC title

• H01Q1/36

  Structural form of radiating elements, e.g. cone, spiral, umbrella; {Particular materials used therewith}(H01Q1/08, H01Q1/14 take precedence) · CPC title

• H01Q1/521

  reducing the coupling between adjacent antennas · CPC title

• H01Q9/0414 Primary

  in a stacked or folded configuration · CPC title