Reflection apparatus used for base station antenna and base station antenna

Patent metadata

Field	Value
Publication number	US-12206172-B2
Application number	US-202218071855-A
Country	US
Kind code	B2
Filing date	Nov 30, 2022
Priority date	Jun 1, 2020
Publication date	Jan 21, 2025
Grant date	Jan 21, 2025

Abstract

A reflection apparatus includes a base plate, where one side is used to dispose a radiation unit, and the other side is used to dispose a feeding network; a first side plate and a second side plate that are separately connected to the base plate and that are disposed opposite to each other, where the first side plate and the second side plate each extend relative to the base plate and toward the side used to dispose the feeding network; a first return plate connected to the first side plate, where the first return plate extends relative to the first side plate and toward a direction of the feeding network; and a second return plate connected to the second side plate, where the second return plate extends relative to the second side plate and toward the direction of the feeding network.

First claim

What is claimed is:

1. A reflection apparatus used for a base station antenna, comprising:
a base plate, wherein one side of the base plate is used to dispose a radiation unit, and the other side of the base plate is used to dispose a feeding network;
a first side plate and a second side plate that are separately connected to the base plate and that are disposed opposite to each other, wherein the first side plate and the second side plate each extend relative to the base plate and toward the side used to dispose the feeding network;
a first return plate connected to the first side plate, wherein the first return plate extends relative to the first side plate and toward a direction of the feeding network; and
a second return plate connected to the second side plate, wherein the second return plate extends relative to the second side plate and toward the direction of the feeding network.

2. The reflection apparatus according to claim 1 , wherein the first side plate is provided with a through hole along a longitudinal direction of the first side plate; and/or
the second side plate is provided with a through hole along a longitudinal direction of the second side plate, wherein the longitudinal direction of the first side plate and the longitudinal direction of the second side plate are the same as a disposing direction of the radiation unit.

3. The reflection apparatus according to claim 1 , wherein the first return plate is provided with a through hole along a longitudinal direction of the first return plate;
and/or the second return plate is provided with a through hole along a longitudinal direction of the second return plate, wherein the longitudinal direction of the first return plate and the longitudinal direction of the second return plate are the same as the disposing direction of the radiation unit.

4. The reflection apparatus according to claim 1 , wherein the reflection apparatus further comprises:
a third side plate and a fourth side plate that are separately connected to the base plate and that are disposed opposite to each other, and the third side plate and the fourth side plate each extend relative to the base plate and toward the side used to dispose the radiation unit.

5. The reflection apparatus according to claim 1 , wherein a value range of an included angle θ1 between the first side plate and the base plate and toward the feeding network is 0°<θ1≤90°, and a value range of an included angle θ2 between the second side plate and the base plate and toward the feeding network is 0°<θ2≤90°.

6. The reflection apparatus according to claim 1 , wherein a value range of an included angle β1 between the first side plate and the first return plate and toward the feeding network is 0°<β1<180°, and a value range of an included angle β2 between the second side plate and the second return plate and toward the feeding network is 0°<β2<180°.

7. The reflection apparatus according to claim 2 , wherein the through hole on the first side plate is a plurality of rectangular through holes, a side of the rectangular through hole along the longitudinal direction of the first side plate is L1, a side perpendicular to L1 is w1, a distance between the plurality of rectangular through holes is k1, 0.3λ≤L1≤0.8λ, 0.01λ≤w1≤λ, 0.3λ≤k1≤0.8λ, and λ is an operating wavelength of a center frequency in an operating frequency band of the radiation unit; or
the through hole on the first side plate is a plurality of serpentine through holes.

8. The reflection apparatus according to claim 2 , wherein the through hole on the second side plate is a plurality of rectangular through holes, a side of the rectangular through hole along the longitudinal direction of the second side plate is L2, a side perpendicular to L2 is w2, a distance between the plurality of rectangular through holes is k2, 0.3λ≤L2<0.8λ, 0.01λ≤w2≤λ, 0.3λ≤k2<0.8λ, and λ is the operating wavelength of the center frequency in the operating frequency band of the radiation unit; or
the through hole on the second side plate is a plurality of serpentine through holes.

9. The reflection apparatus according to claim 3 , wherein the through hole on the first return plate is a plurality of rectangular through holes, a side of the rectangular through hole along the longitudinal direction of the first return plate is L3, a side perpendicular to L3 is w3, a distance between the plurality of rectangular through holes is k3, 0.3λ≤L3≤0.8λ, 0.01λ≤w3≤λ, 0.3λ≤k3≤0.8λ, and λ is the operating wavelength of the center frequency in the operating frequency band of the radiation unit; or
the through hole on the first return plate is a plurality of serpentine through holes.

10. The reflection apparatus according to claim 3 , wherein the through hole on the second return plate is a plurality of rectangular through holes, a side of the rectangular through hole along the longitudinal direction of the second return plate is L4, a side perpendicular to L4 is w4, a distance between the plurality of rectangular through holes is k4, 0.3λ≤L4≤0.8λ, 0.01λ≤w4≤λ, 0.3λ≤k4≤0.8λ, and λ is the operating wavelength of the center frequency in the operating frequency band of the radiation unit; or
the through hole on the second return plate is a plurality of serpentine through holes.

11. The reflection apparatus according to claim 1 , wherein the base plate and the first side plate are integrally formed, or
the base plate is coupled to the first side plate; and
the first side plate and the first return plate are integrally formed, or
the first side plate is coupled to the return plate.

12. The reflection apparatus according to claim 1 , wherein the base plate and the second side plate are integrally formed, or
the base plate is coupled to the second side plate; and
the second side plate and the second return plate are integrally formed, or
the second side plate is coupled to the second return plate.

13. The refection apparatus according to claim 11 , wherein coupling connection comprises non-metal contact or metal contact.

14. A base station antenna, comprising:
a radiation unit,
a feeding network, and
a reflection apparatus, wherein the reflection apparatus comprises:
a base plate, wherein one side of the base plate is used to dispose a radiation unit, and the other side of the base plate is used to dispose a feeding network;
a first side plate and a second side plate that are separately connected to the base plate and that are disposed opposite to each other, wherein the first side plate and the second side plate each extend relative to the base plate and toward the side used to dispose the feeding network;
a first return plate connected to the first side plate, wherein the first return plate extends relative to the first side plate and toward a direction of the feeding network; and
a second return plate connected to the second side plate, wherein the second return plate extends relative to the second side plate and toward the direction of the feeding network.

15. The base station antenna according to claim 14 , wherein the first side plate is provided with a through hole along a longitudinal direction of the first side plate; and/or
the second side plate is provided with a through hole along a longitudinal direction of the second side plate, wherein the longitudinal direction of the first side plate and the longitudinal direction of the second side plate are the same as a disposing direction of the radiation unit.

16. The base station antenna according to claim 14 , wherein the first return plate is provided with a through hole along a longitudinal direction of the fi

Assignees

• Huawei Tech Co Ltd

Inventors

• Wu Wentao
• Qin Fangjun
• Huang Wenbin
• Zhang Lianhong

Classifications

• H01Q15/14 Primary

  Reflecting surfaces; Equivalent structures {(electromagnetic shields H01Q1/526)} · CPC title

• H01Q1/246 Primary

  specially adapted for base stations · CPC title

• H01Q1/523

  between antennas of an array · CPC title

• H01Q19/108

  Combination of a dipole with a plane reflecting surface (H01Q19/106 takes precedence; strip line H01Q9/065) · CPC title

• H01Q15/18

  comprising plurality of mutually inclined plane surfaces, e.g. corner reflector {(H01Q15/16 takes precedence)} · CPC title