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Title:
ANTENNA CALIBRATION NETWORK UNIT, ANTENNA CALIBRATION NETWORK, AND MIMO ANTENNA
Document Type and Number:
WIPO Patent Application WO/2021/000203
Kind Code:
A1
Abstract:
Provided in the present invention are an antenna calibration network unit, an antenna calibration network, and a MIMO antenna, the calibration network unit comprising a substrate, a plurality of directional coupler groups arranged on the substrate, and a multi-stage combiner network arranged at the front end of the directional coupler group; the parallel coupling lines of each directional coupler are arranged along the horizontal direction, and the plurality of directional couplers are distributed along the horizontal direction; the multi-stage combiner network comprises first-stage combiners and second-stage combiners, the first-stage combiners being arranged on one side of the plurality of directional coupler groups; the second-stage combiners and the first-stage combiners are cascaded, and each second-stage combiner traverses between two directional coupler groups corresponding to the two first-stage combiners to the other side of the plurality of directional coupler groups. By means of the present antenna calibration network unit, the rate of space utilisation of the calibration network board can be increased and the size of the calibration network board reduced, reducing antenna costs.

Inventors:
CHU QINGCHEN (CN)
HAN LI (CN)
YUE YUEHUA (CN)
Application Number:
CN2019/094103
Publication Date:
January 07, 2021
Filing Date:
June 30, 2019
Export Citation:
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Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04B7/0413
Attorney, Agent or Firm:
SHENZHEN CIPRUN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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