Device for reducing interference among antennas of multiple base stations

Patent metadata

Field	Value
Publication number	US-9570801-B2
Application number	US-201314761933-A
Country	US
Kind code	B2
Filing date	Aug 29, 2013
Priority date	Jan 30, 2013
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A device for reducing interference among antennas of multiple base stations is provided, which includes an antenna module placed on a base station and configured to transmit and receive radio waves, a holding pole placed on the base station and configured to support the antenna module, a mounting bracket coupled to the antenna module and the holding pole, and a shielding apparatus placed on the holding pole or the antenna module and capable of being adjusted in directions. The device has a simple structure; it is easy to manufacture and install the device; it can be applied to the base station's antennas in network use. In addition, the device can efficiently increase isolation and reduce interferences among the antennas of the multiple base stations.

First claim

What is claimed is:

1. A device for reducing interference among antennas of multiple base stations, comprising:
an antenna module placed on a base station, and configured to transmit and receive radio waves;
a holding pole placed on the base station, and configured to support the antenna module;
a mounting bracket, coupled to the antenna module and the holding pole; and
a shielding apparatus placed on the holding pole or the antenna module, and is capable of being adjusted in directions;
wherein the shielding apparatus is an apparatus that absorbs or shields an electromagnetic wave;
the shielding apparatus comprises:
a stretchable shielding plate;
a first bracket coupled to the holding pole, wherein the first bracket is capable of sliding along an exterior of the holding pole; and
a rotation shaft placed on the shielding plate, wherein the rotation shaft is hinged to the first bracket.

2. The device according to claim 1 , wherein the shielding plate is composed of a plurality of reticular plates, and adjacent reticular plates uses sliding connection, and one of the plurality of the reticular plates is fixedly coupled with the rotation shaft.

3. The device according to claim 1 , wherein the shielding plate is a folded plate which has an adjustable length.

4. The device according to claim 1 , wherein the shielding apparatus comprises:
a stretchable shielding plate;
a second bracket placed on the antenna module; and
a connection sleeve placed on the shielding plate, wherein the connection sleeve is rotationally coupled to the second bracket.

5. The device according to claim 4 , wherein the shielding plate is a folded plate which has an adjustable length.

6. The device according to claim 2 , wherein the shielding plate is made of a metal material or an absorbing material.

7. The device according to claim 2 , wherein a length of the shielding plate is 50%˜80% of a length of a radome.

8. The device according to claim 2 , wherein the first bracket is a stretchable bracket, and one end of the first bracket is equipped with a fixed sleeve placed on the holding pole.

9. The device according to claim 3 , wherein the shielding plate is made of a metal material or an absorbing material.

10. The device according to claim 5 , wherein the shielding plate is made of a metal material or an absorbing material.

11. The device according to claim 3 , wherein a length of the shielding plate is 50%˜80% of a length of a radome.

12. The device according to claim 5 , wherein a length of the shielding plate is 50%˜80% of a length of a radome.

13. The device according to claim 3 , wherein the first bracket is a stretchable bracket, and one end of the first bracket is equipped with a fixed sleeve placed on the holding pole.

Assignees

• Zte Corp

Inventors

• Zhao Lijuan
• Shen Nan
• Li Zhanfu
• Zhao Xianming

Classifications

• H01Q1/246 Primary

  specially adapted for base stations · CPC title

• H01Q17/00

  Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems · CPC title

• H01Q1/1242

  Rigid masts specially adapted for supporting an aerial · CPC title

• H01Q1/526 Primary

  Electromagnetic shields · CPC title

• H01Q1/521

  reducing the coupling between adjacent antennas · CPC title