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1. (WO2015120624) ANTENNA SWITCHING SYSTEM AND METHOD

Pub. No.:    WO/2015/120624    International Application No.:    PCT/CN2014/072142
Publication Date: Fri Aug 21 01:59:59 CEST 2015 International Filing Date: Tue Feb 18 00:59:59 CET 2014
IPC: H01Q 1/24
Applicants: HUAWEI DEVICE CO., LTD.
华为终端有限公司
Inventors: XU, Qiuliang
徐求良
YANG, Liping
杨丽萍
ZHANG, Changfeng
张昌峰
CHEN, Zhijun
陈志君
Title: ANTENNA SWITCHING SYSTEM AND METHOD
Abstract:
The present invention applies to the field of mobile terminals, and provides an antenna switching system and method. The antenna switching system comprises a radio frequency transceiver circuit, a main antenna and a parasitic antenna. The main antenna is connected to the radio frequency transceiver circuit. The antenna switching system also comprises a switch circuit, used for connecting the parasitic antenna to the radio frequency transceiver circuit, when the parasitic antenna is being used to receive or transmit a radio frequency signal. If the parasitic antenna is connected to the ground, the parasitic antenna may be used for spreading. In addition, when carrier aggregation is required, the parasitic antenna is connected to the radio frequency transceiver circuit, becoming an independent receiving or transmitting antenna. In this way, no new antennae are added, only a main antenna and a parasitic antenna included in an existing mobile terminal are used, and the effect of increasing the number of paths for receiving or transmitting a radio frequency signal is achieved.