Antenna, base station, and beam processing method

• US 9,673,882 B2
• Filed: 04/22/2013
• Issued: 06/06/2017
• Est. Priority Date: 04/20/2012
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Ai, Ming, Xiao, Weihong
• Primary Examiner(s): Phan, Dao
• Application Number:
  US13/867,497
• Publication Number:
  US 20130278460A1
• Time in Patent Office: 1,506 Days
• Field of Search: 342368, 342372, 342373, 342378
• CPC Class Codes: H01Q 1/246 specially adapted for base stations
• CPC Class Codes: H01Q 21/22 Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array
• CPC Class Codes: H01Q 3/40 with phasing matrix
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04B 7/0686 Hybrid systems, i.e. switching and simultaneous transmission

Abstract

The present disclosure provides an antenna, a base station, and a beam processing method. The method includes: performing, by a hybrid network, phase adjustment for signals received from a transceiver, generating signals having a preset phase, and sending the signals to a power dividing apparatus; performing, by the power dividing apparatus, amplitude adjustment for the signals, and outputting multipath signals having an array amplitude and the preset phase to multiple antenna arrays; and transmitting, by the multiple antenna arrays, the multiple signals having the array phase and the array amplitude.

Claims

1. A base station antenna, comprising a beamforming network and multiple antenna arrays;

wherein;

the beamforming network comprises a hybrid network and a power dividing apparatus;

the hybrid network comprises multiple input signal ports for communicating with a transceiver of a base station, and is configured to receive signals from the transceiver, perform phase adjustment on received signals and send signals to the power dividing apparatus;

the power dividing apparatus comprises multiple output signal ports for communicating with the antenna arrays, wherein each output signal port is connected to one antenna array; and

is configured to receive signals from the hybrid network, perform amplitude adjustment on received signals and output signals to the multiple antenna arrays; and

the multiple antenna arrays comprise at least one reverse array, and are configured to receive signals from the power dividing apparatus and transmit received signals, wherein each reverse array is configured to perform phase reversal on a signal to be transmitted by the reverse array with the aid of a different connection configuration of a feeding point than other antenna arrays.

2. The antenna according to claim 1, wherein the number of reverse arrays is two, and the power dividing apparatus comprises a first power dividing apparatus and a second power dividing apparatus;

wherein;

the hybrid network comprises a 90-degree hybrid coupler, wherein the 90-degree hybrid coupler comprises a first output port and a second output port, the first output port is connected to the first power dividing apparatus, and the second output port is connected to the second power dividing apparatus; and

each power dividing apparatus comprises a first output port and a second output port, wherein the first output port is connected to the reverse array, and the second output port is connected to another antenna array other than the reverse array.

3. The antenna according to claim 1, wherein the number of reverse arrays is four, and the number of power dividing apparatuses is four;

the hybrid network comprises a first 90-degree hybrid coupler and a second 90-degree hybrid coupler at layer 1, and a third 90-degree hybrid coupler and a fourth 90-degree hybrid coupler at layer 2, the first 90-degree hybrid coupler and the third 90-degree hybrid coupler are opposite to each other, and the second 90-degree hybrid coupler and the fourth 90-degree hybrid coupler are opposite to each other;

an output port of the first 90-degree hybrid coupler is connected to the third 90-degree hybrid coupler through a −

45-degree phase shifter, and another output port is connected to the fourth 90-degree hybrid coupler;

an output port of the second 90-degree hybrid coupler is connected to the fourth 90-degree hybrid coupler through a −

45-degree phase shifter, and another output port is connected to the third 90-degree hybrid coupler;

each output port of the third 90-degree hybrid coupler and the fourth 90-degree hybrid coupler is connected to one power dividing apparatus; and

each power dividing apparatus comprises a first output port and a second output port, wherein the first output port is connected to the reverse array, and the second output port is connected to another antenna array other than the reverse array.

4. The antenna according to claim 1, wherein:

the multiple antenna arrays are further configured to receive signals and output received signals to the power dividing apparatus, wherein each reverse array is configured to perform phase reversal on a signal received by the reverse array using a different connection configuration of a feeding point than other antenna arrays;

the power dividing apparatus is further configured to receive signals from the multiple antenna arrays, perform amplitude adjustment on received signals and output signals to the hybrid network; and

the hybrid network is further configured to receive signals from the power dividing apparatus, perform phase adjustment on received signals and output signals to the transceiver.

6. The antenna according to claim 1, wherein the multiple antenna arrays have at least one same polarization.

7. The antenna according to claim 1, wherein the multiple antenna arrays are half-wave dipole antenna arrays.

8. The antenna according to claim 1, wherein the number of signals transmitted by the multiple antenna arrays is four, and an array amplitude distribution for the four signals is 0.412:

1;

1;

0.412.

9. The antenna according to claim 1, wherein the number of signals transmitted by the multiple antenna arrays is eight, and an array amplitude distribution for the eight signals is 0.412:

0.412;

1;

1;

1;

1;

0.412;

0.412.

5. A base station, comprising a transceiver, a feeder line, and an antenna, wherein:

the feeder line is respectively connected to the transceiver and the antenna, and is configured to transmit signals generated by the transceiver to the antenna;

the antenna comprises a beamforming network and multiple antenna arrays;

the beamforming network comprises a hybrid network and a power dividing apparatus;

the hybrid network is configured to receive signals from the transceiver, perform phase adjustment on received signals and send signals to the power dividing apparatus;

the power dividing apparatus is connected to one antenna array; and

is configured to receive signals from the hybrid network, perform amplitude adjustment on received signals and output signals to the multiple antenna arrays; and

the multiple antenna arrays comprise at least one reverse array, and are configured to receive signals from the power dividing apparatus and transmit received signals, wherein each reverse array is configured to perform phase reversal on a signal to be transmitted by the reverse array using a different connection configuration of a feeding point than other antenna arrays.

10. The base station according to claim 5, wherein the number of reverse arrays is two, and the power dividing apparatus comprises a first power dividing apparatus and a second power dividing apparatus;

wherein;

the hybrid network comprises a 90-degree hybrid coupler, wherein the 90-degree hybrid coupler comprises a first output port and a second output port, the first output port is connected to the first power dividing apparatus, and the second output port is connected to the second power dividing apparatus; and

each power dividing apparatus comprises a first output port and a second output port, wherein the first output port is connected to the reverse array, and the second output port is connected to another antenna array other than the reverse array.

11. The base station according to claim 5, wherein the number of reverse arrays is four, and the number of power dividing apparatuses is four;

the hybrid network comprises a first 90-degree hybrid coupler and a second 90-degree hybrid coupler at layer 1, and a third 90-degree hybrid coupler and a fourth 90-degree hybrid coupler at layer 2, the first 90-degree hybrid coupler and the third 90-degree hybrid coupler are opposite to each other, and the second 90-degree hybrid coupler and the fourth 90-degree hybrid coupler are opposite to each other;

an output port of the first 90-degree hybrid coupler is connected to the third 90-degree hybrid coupler through a −

45-degree phase shifter, and another output port is connected to the fourth 90-degree hybrid coupler;

an output port of the second 90-degree hybrid coupler is connected to the fourth 90-degree hybrid coupler through a −

45-degree phase shifter, and another output port is connected to the third 90-degree hybrid coupler;

each output port of the third 90-degree hybrid coupler and the fourth 90-degree hybrid coupler is connected to one power dividing apparatus; and

each power dividing apparatus comprises a first output port and a second output port, wherein the first output port is connected to the reverse array, and the second output port is connected to another antenna array other than the reverse array.

12. The base station according to claim 5, wherein the multiple antenna arrays have at least one same polarization.

13. The base station according to claim 5, wherein the multiple antenna arrays are half-wave dipole antenna arrays.

14. The base station according to claim 5, wherein the number of signals transmitted by the multiple antenna arrays is four, and an array amplitude distribution for the four signals is 0.412:

1;

1;

0.412.

15. The base station according to claim 5, wherein the number of signals transmitted by the multiple antenna arrays is eight, and an array amplitude distribution for the eight signals is 0.412:

0.412;

1;

1;

1;

1;

0.412;

0.412.