Title:
MULTI-ANTENNA SYSTEM AND MOBILE TERMINAL
Document Type and Number:
WIPO Patent Application WO/2020/207425
Kind Code:
A1
Abstract:
The present invention provides a multi-antenna system and a mobile terminal. The multi-antenna system comprises a main board and at least two antenna modules electrically connected to the main board, a feed point port and at least two grounding ports are provided between each antenna module and the main board, an impedance matching unit is provided between each feed point port and the antenna module, a neutralizing wire is provided between every two adjacent impedance matching units, a filtering unit is provided on the neutralizing wire, and the filtering unit is configured to reduce coupling between adjacent antenna modules, so as to improve the isolation of the antenna modules. In the present invention, by means of the design of the neutralizing wire and the filtering unit, and in a manner of adjusting a capacitance or inductance value, the filtering units are respectively equivalent to the required inductance or capacitance value in a specific frequency band of two corresponding antenna modules, so as to achieve the effect of reducing coupling between the two antenna modules, thereby effectively improving the isolation of the antenna modules, and avoiding performance degradation caused by mutual influence between the antenna modules.
Inventors:
SONG BO (CN)
ZHANG XUEFEI (CN)
ZHANG XUEFEI (CN)
Application Number:
PCT/CN2020/083902
Publication Date:
October 15, 2020
Filing Date:
April 09, 2020
Export Citation:
Assignee:
SHANGHAI ZHONGLIAN TECH LTD CO (CN)
International Classes:
H01Q1/52; H01Q21/28
Domestic Patent References:
| WO2014041903A1 | 2014-03-20 | |||
| WO2012125176A1 | 2012-09-20 |
Foreign References:
| CN110011036A | 2019-07-12 | |||
| CN109149072A | 2019-01-04 | |||
| US20120086611A1 | 2012-04-12 | |||
| US20140320372A1 | 2014-10-30 | |||
| CN107623176A | 2018-01-23 | |||
| CN108808268A | 2018-11-13 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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