Antenna and electronic device

Patent metadata

Field	Value
Publication number	US-12347946-B2
Application number	US-202218021393-A
Country	US
Kind code	B2
Filing date	Jun 21, 2022
Priority date	Jun 21, 2022
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

An antenna includes a first feed layer, a second feed layer and a radiation structure layer stacked; the first feed layer includes a first dielectric substrate and a micro-strip line structure stacked; multiple first conductive patches in a first conductive structure are electrically connected to a reference ground structure through an electrical connection structure on the second dielectric substrate; the reference ground structure is provided with a first slot, multiple first conductive patches are symmetrically arranged with respect to a first centerline, and the first centerline is a centerline of the first slot extending along the second direction; the radiation structure layer includes a third dielectric substrate and a second conductive structure stacked, multiple second conductive patches in the second conductive structure are symmetrically disposed with respect to the first centerline, any one of the second conductive patches is provided with at least one second slot.

First claim

The invention claimed is:

1. An antenna comprising: a first feed layer, a second feed layer, and a radiation structure layer which are stacked; wherein
the first feed layer comprises a first dielectric substrate and a micro-strip line structure which are stacked, wherein the micro-strip line structure is arranged on a side of the first dielectric substrate away from the second feed layer;
the second feed layer comprises a reference ground structure, a second dielectric substrate, and a first conductive structure which are stacked, the reference ground structure is arranged on a side of the second dielectric substrate facing the first feed layer, the first conductive structure is arranged on a side of the second dielectric substrate away from the first feed layer, the first conductive structure comprises a plurality of first conductive patches, a plurality of electrical connection structures are provided on the second dielectric substrate, and the plurality of first conductive patches are respectively electrically connected with the reference ground structure through the plurality of electrical connection structures;
the reference ground structure is provided with a first slot, and in a plane where the first conductive structure is located, the plurality of first conductive patches are symmetrically arranged with respect to a first centerline, wherein the first centerline is a centerline of the first slot extending along a second direction, and a first direction is orthogonal to the second direction;
the radiation structure layer comprises a third dielectric substrate and a second conductive structure which are stacked, the second conductive structure is arranged on a side of the third dielectric substrate away from the second feed layer, the second conductive structure comprises a plurality of second conductive patches, in a plane where the second conductive structure is located, the plurality of second conductive patches are symmetrically arranged with respect to the first centerline, each of the plurality of second conductive patches is provided with at least one second slot, and a plurality of second slots on the plurality of second conductive patches are symmetrically arranged with respect to the first centerline along the first direction, and the plurality of second slots extend to an edge of a side of the plurality of second conductive patches close to the first centerline;
wherein the plurality of first conductive patches in the first conductive structure comprise two first conductive patches, and the two first conductive patches are arranged along the first direction;
the plurality of second conductive patches in the second conductive structure comprise two second conductive patches, and the two second conductive patches are arranged along the first direction;
the plurality of electrical connection structures comprise two electrical connection structures;
wherein, in a plane where the radiation structure layer is located, the two second conductive patches are symmetrically arranged with respect to a second centerline, and the second centerline is a centerline of a center of the antenna extending along the first direction;
the at least one second slot on each of the plurality of second conductive patches is symmetrically arranged along the second direction with respect to the second centerline;

wherein each of the two second conductive patches is further provided with a third slot, and in a plane where the radiation structure layer is located, the third slot is symmetrically arranged with respect to the second centerline along the second direction;
the third slot extends to an edge of a side of each of the plurality of second conductive patches away from the first centerline; and
each third slot on the two second conductive patches is symmetrically arranged with respect to the first centerline along the first direction.

2. The antenna according to claim 1 , wherein an orthographic projection of the micro-strip line structure on a plane where the first dielectric substrate is located is at least partially overlapped with orthographic projections of the plurality of the first conductive patches, the plurality of the second conductive patches, and the first slot on the first dielectric substrate.

3. The antenna according to claim 2 , wherein the micro-strip line structure is symmetrically arranged along the second direction with respect to a second centerline in a plane where the first feed layer is located, and the second centerline is a centerline of a center of the antenna extending along the first direction;
in the plane where the first feed layer is located, the first micro-strip line structure has a size of 6 mm to 10 mm in the first direction, and the first micro-strip line structure has a size of 0.8 mm to 1.4 mm in the second direction.

4. The antenna according to claim 1 , wherein each of the two electric connection structures and a corresponding first conductive patch of the two first conductive patches form an L-shaped probe, the two electric connection structures and the two first conductive patches form two L-shaped probes, in a plane where the second feed layer is located, two L-shaped probes are symmetrically arranged with respect to the first centerline along the first direction, the two L-shaped probes are symmetrically arranged with respect to a second centerline, and the second centerline is a centerline of a center of the antenna extending along the first direction.

5. The antenna according to claim 1 , wherein a number of the second slots on the same second conductive patch is one to three.

6. The antenna according to claim 1 , wherein in the plane where the radiation structure layer is located, the plurality of second slots and the two third slots each has a size of 1 mm to 2 mm in the first direction and the plurality of second slots and the two third slots each has a size of 0.1 mm to 0.2 mm in the second direction.

7. The antenna according to claim 1 , wherein on each of the plurality of second conductive patches, the plurality of second slots comprise two second slots, and the two second slots are arranged symmetrically with respect to the third slot along the second direction.

8. The antenna according to claim 1 , wherein the first slot is further provided with a branch structure connected to the reference ground structure.

9. The antenna according to claim 8 , wherein the branch structure comprises a first branch structure and a second branch structure; the first branch structure and the second branch structure are arranged along the first direction and are arranged on two sides of the first centerline;
the first branch structure comprises a first connection line and a second connection line, wherein the first connection line extends along the first direction, an end of the first connection line away from the first centerline is connected with the reference ground structure, and an end of the first connection line close to the first centerline is connected with the second connection line; a first end of the second connection line is connected with the first connection line, and a second end of the second connection line extends along the second direction;
the second branch structure comprises a third connection line and a fourth connection line, wherein the third connection line extends along the first direction, an end of the third connection line away from the first centerline is connected with the reference ground structure, and an end of the third connection line close to the first centerline is connected with the fourth connection line; and a first end of the fourth connection line is connected with the third connection line, and a second end of the fourth connection line extends along the second dir

Assignees

• Beijing Boe Technology Dev Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Wang Yali
• Fan Xichao
• Qu Feng

Classifications

• H01Q13/106

  Microstrip slot antennas (patch antenna elements H01Q9/0407) · CPC title

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q1/22

  by structural association with other equipment or articles · CPC title

• H01Q9/0414 Primary

  in a stacked or folded configuration · CPC title

• H01Q9/0457 Primary

  electromagnetically coupled to the feed line · CPC title