Title:
ANTENNA TUNING CIRCUIT, ANTENA APPARATUS AND MOBILE TERMINAL
Document Type and Number:
WIPO Patent Application WO/2019/114622
Kind Code:
A1
Abstract:
Disclosed are an antenna tuning circuit and a mobile terminal. The antenna tuning circuit comprises: an antenna, a first matching circuit, a second matching circuit, a first switch, a second switch and a radio frequency signal transceiver. The antenna comprises a first feed point, a second feed point and a third feed point that are sequentially arranged. The first matching circuit and the first switch are serially connected between the first feed point and the ground, and the second matching circuit and the second switch are serially connected between the second feed point and the ground. When a working frequency band is at a low frequency, a radio frequency signal emitted by the radio frequency signal transceiver is transmitted to an antenna radiating body via the third feed point, the first switch and the second switch are both turned on, and a frequency band within a third frequency band range is smaller than a frequency band within a second frequency band range. By means of the embodiments of the present application, stray radiation can be suppressed.
Inventors:
YANG HUAI (CN)
Application Number:
PCT/CN2018/119757
Publication Date:
June 20, 2019
Filing Date:
December 07, 2018
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H01Q1/50
Foreign References:
| CN108134202A | 2018-06-08 | |||
| CN108110423A | 2018-06-01 | |||
| CN105633555A | 2016-06-01 | |||
| CN206148617U | 2017-05-03 | |||
| CN107317112A | 2017-11-03 | |||
| CN103794871A | 2014-05-14 | |||
| US20170005397A1 | 2017-01-05 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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