Title:
ANTENNA ADJUSTMENT CIRCUIT, RESONANT FREQUENCY ADJUSTMENT METHOD, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/072080
Kind Code:
A1
Abstract:
The present application provides an antenna adjustment circuit, a resonant frequency adjustment method, and an electronic device. The antenna adjustment circuit comprises a driving control module, an antenna matching circuit, an antenna, a first adjustable capacitor, and a second adjustable capacitor. The driving control module is electrically connected to a first port and a second port of the antenna by means of the antenna matching circuit, separately. The first port of the antenna is grounded and electrically connected by means of the first adjustable capacitor. The second port of the antenna is grounded and electrically connected by means of the second adjustable capacitor. An adjustment end of the first adjustable capacitor and an adjustment end of the second adjustable capacitor are electrically connected to the driving control module, respectively. When the driving control module receives at least two target carriers, the capacitance values of the first adjustable capacitor and the second adjustable capacitor are adjusted, so that a resonant frequency corresponding to the antenna is a target resonant frequency, which is a carrier frequency corresponding to a target carrier having the maximum load modulation depth.
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Inventors:
LIU YANBIN (CN)
Application Number:
PCT/CN2022/127398
Publication Date:
May 04, 2023
Filing Date:
October 25, 2022
Export Citation:
Assignee:
VIVO MOBILE COMMUNICATION CO LTD (CN)
International Classes:
H01Q23/00; H01Q5/10
Foreign References:
| CN113964485A | 2022-01-21 | |||
| JP2005063123A | 2005-03-10 | |||
| CN213876801U | 2021-08-03 | |||
| CN107078763A | 2017-08-18 | |||
| CN112152675A | 2020-12-29 | |||
| CN204334560U | 2015-05-13 | |||
| CN109638455A | 2019-04-16 | |||
| US20200242309A1 | 2020-07-30 | |||
| US20190097459A1 | 2019-03-28 |
Attorney, Agent or Firm:
DRAGON INTELLECTUAL PROPERTY LAW FIRM (CN)
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