Antenna and display apparatus

Patent metadata

Field	Value
Publication number	US-12261377-B2
Application number	US-202117904255-A
Country	US
Kind code	B2
Filing date	Nov 17, 2021
Priority date	Nov 17, 2021
Publication date	Mar 25, 2025
Grant date	Mar 25, 2025

Abstract

An antenna is provided. The antenna includes a ground plate; a dielectric layer on the ground plate; and a microstrip feed line and a radiating patch on a side of the dielectric layer away from the ground plate, the radiating patch being coupled to the microstrip feed line and configured to receive a signal from the microstrip feed line. The radiating patch includes a main body having a parallelogram shape with a first notch truncating a corner of the parallelogram shape, at least a portion of the main body truncated by the first notch having an arc-shaped contour line. The radiating patch further includes a first branch structure.

First claim

What is claimed is:

1. An antenna, comprising:
a ground plate;
a dielectric layer on the ground plate; and
a microstrip feed line and a radiating patch on a side of the dielectric layer away from the ground plate, the radiating patch being coupled to the microstrip feed line and configured to receive a signal from the microstrip feed line;
wherein the radiating patch comprises a main body having a parallelogram shape with a first notch truncating a corner of the parallelogram shape, at least a portion of the main body truncated by the first notch having an arc-shaped contour line; and
the radiating patch further comprises a first branch structure disconnected from the microstrip feed line;
wherein the main body is asymmetric;
the first notch does not have a symmetric counterpart with respect to an axis or a plane perpendicular to the main body and intersecting the main body and the ground plate; and
the first branch structure does not have a symmetric counterpart with respect to an axis or a plane perpendicular to the main body and intersecting the main body and the ground plate.

2. The antenna of claim 1 , wherein an orthographic projection of the ground plate on the dielectric layer at least partially overlaps with an orthographic projection of the microstrip feed line on the dielectric layer.

3. The antenna of claim 1 , wherein the first branch structure extends from a side of the parallelogram shape that is not truncated by the first notch.

4. The antenna of claim 1 , wherein the first notch truncates a first side and a second side of the parallelogram shape;
the first branch structure extends from a third side of the parallelogram shape; and
the second side connects the first side to the third side.

5. The antenna of claim 1 , wherein the first branch structure comprises a first branch connected to the main body and a second branch connected to the first branch, the first branch and the second branch being disconnected from the micro strip line;
the first branch is elongated in a first longitudinal direction; and
the second branch is elongated in a second longitudinal direction different from the first longitudinal direction.

6. The antenna of claim 5 , wherein the first longitudinal direction is perpendicular to a side of the main body connected to the first branch; and
the second longitudinal direction is perpendicular to the first longitudinal direction.

7. The antenna of claim 1 , further comprising a second branch structure;
wherein the first branch structure and the second branch structure are connected to two opposite sides of the main body.

8. The antenna of claim 1 , wherein the first branch structure has a T shape.

9. The antenna of claim 7 , wherein the first branch structure has a T shape; and
the second branch structure has a L shape.

10. The antenna of claim 1 , wherein the first notch has a partial circle shape.

11. The antenna of claim 1 , wherein the main body has the parallelogram shape with the first notch truncating a first corner of the parallelogram shape, and a second notch truncating a second corner of the parallelogram shape.

12. The antenna of claim 11 , wherein the first corner and the second corner are opposite to each other.

13. The antenna of claim 11 , wherein the second notch has a triangular shape.

14. The antenna of claim 11 , wherein the first notch truncates a first side and a second side of the parallelogram shape;
the first branch structure extends from a third side of the parallelogram shape;
the second side connects the first side to the third side; and
the second notch truncates the third side of the parallelogram shape.

15. The antenna of claim 1 , further comprising a first ring-shaped groove extending through the main body.

16. The antenna of claim 15 , wherein a virtual extension of the microstrip feed line partitions the parallelogram shape into two portions; and
the first ring-shaped groove extends through a portion of the parallelogram shape that is truncated by the first notch.

17. The antenna of claim 15 , further comprising a second ring-shaped groove extending through the main body;
wherein a virtual extension of the microstrip feed line partitions the parallelogram shape into two portions;
the first ring-shaped groove extends through a first portion of the parallelogram shape that is truncated by the first notch; and
the second ring-shaped groove extends through a second portion of the parallelogram shape different from the first portion.

18. The antenna of claim 1 , further comprising an impedance transformation structure configured to perform impedance matching;
wherein the impedance transformation structure connects the microstrip feed line to the radiating patch; and
the impedance transformation structure has a trapezoidal shape having a long side connected to the radiating patch and a short side connected to the microstrip feed line.

19. The antenna of claim 18 , wherein the impedance transformation structure, the microstrip feed line, and the radiating patch are parts of a unitary structure.

20. An electronic apparatus, comprising the antenna of claim 1 .

Assignees

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

Inventors

• Wang Yali
• Qu Feng

Classifications

• H01Q1/22

  by structural association with other equipment or articles · CPC title

• H01Q9/0428

  radiating a circular polarised wave · CPC title

• H01Q9/0407 Primary

  Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40) · CPC title

• H01Q9/045 Primary

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