Antenna and Electronic Device

Patent metadata

Field	Value
Publication number	US-2024275052-A1
Application number	US-202218021393-A
Country	US
Kind code	A1
Filing date	Jun 21, 2022
Priority date	Jun 21, 2022
Publication date	Aug 15, 2024
Grant date	—

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

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 a feed layer 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 intersects with 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 antenna is located, the plurality of second conductive patches are symmetrically arranged with respect to the first centerline, any one of the second conductive patches is provided with at least one second slot, and second slots on the plurality of second conductive patches are symmetrically arranged with respect to the first centerline along a first direction, and a second slot extends to an edge of a side of a second conductive patch close to the first centerline.

2 . The antenna according to claim 1 , wherein a number of the first conductive patches in the first conductive structure is two, and the two first conductive patches are arranged along the first direction;
a number of the second conductive patches in the second conductive structure is two, and the two second conductive patches are arranged along the first direction.

3 . 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.

4 . The antenna according to claim 3 , 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 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.

5 . The antenna according to claim 2 , wherein the electric connection structure and a corresponding first conductive patch form an L-shaped probe, 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 the antenna extending along the first direction.

6 . The antenna according to claim 2 , 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 the first antenna extending along the first direction;
a second slot on a same second conductive patch is symmetrically arranged along the second direction with respect to the second centerline.

7 . The antenna according to claim 6 , wherein a number of the second slots on the same second conductive patch is one to three.

8 . The antenna according to claim 6 , wherein any one of the second conductive patches is further provided with a third slot, 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, and third slots on the two second conductive patches are symmetrically arranged with respect to the first centerline along the first direction;
the third slot extends to an edge of a side of the second conductive patch away from the first centerline.

9 . The antenna according to claim 8 , wherein in the plane where the radiation structure layer is located, the second slot and the third slot each has a size of 1 mm to 2 mm in the first direction and the second slot and the third slot each has a size of 0.1 mm to 0.2 mm in the second direction.

10 . The antenna according to claim 8 , wherein on a same second conductive patch, a number of the third slots is one, a number of the second slots is two, and the two second slots are arranged symmetrically with respect to the third slot along the second direction.

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

12 . The antenna according to claim 11 , wherein branch structures comprise 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 an opposite direction of 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 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 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 direction.

13 . The antenna according to claim 1 , wherein the second feed layer further comprises a first short-circuit connection structure and a second short-circuit connection structure arranged in a same layer as the first conductive structure, and the second dielectric substrate is further provided with two first short-circuit connecti

Assignees

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

Inventors

• Wang Yali
• Fan Xichao
• Qu Feng

Classifications

• H01Q9/0457 Primary

  electromagnetically coupled to the feed line · CPC title

• 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