Title:
BASE STATION ANTENNA
Document Type and Number:
WIPO Patent Application WO/2021/128327
Kind Code:
A1
Abstract:
The present utility model relates to the field of communication technology, and in particular, to a base station antenna. The base station antenna comprises two antenna arrays and a calibration module provided at a front end of the antenna arrays; the two antenna arrays are symmetrically provided, each antenna array comprises a plurality of antenna sub-arrays, each antenna sub-array comprises a radio frequency entrance, and the radio frequency entrances of the antenna sub-arrays of each antenna array are provided close to the other antenna array; and the calibration module comprises directional couplers the number of which is consistent with that of the antenna sub-arrays, and a combiner provided at a front end of the directional couplers, each directional coupler uses a connection end connected to the radio frequency entrance as a direct connection end, and uses a connection end connected to the combiner as a coupling end, and the calibration module is used for monitoring and comparing the amplitude and phase of signals at the radio frequency entrances. The base station antenna has a simple structure, simplifying the structure of a calibration module, and reducing production costs.
Inventors:
SHEN YACHUAN (CN)
Application Number:
PCT/CN2019/129396
Publication Date:
July 01, 2021
Filing Date:
December 27, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H01Q21/00; H04B17/12
Foreign References:
| CN105634627A | 2016-06-01 | |||
| CN105634627A | 2016-06-01 | |||
| CN107567112A | 2018-01-09 | |||
| CN110247198A | 2019-09-17 | |||
| CN106936521A | 2017-07-07 | |||
| CN204243214U | 2015-04-01 | |||
| CN204243214U | 2015-04-01 | |||
| US20030227420A1 | 2003-12-11 |
Attorney, Agent or Firm:
GUANGZHOU YUEXIU JILY PATENT & TRADEMARK LAW OFFICE (CN)
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