ANTENNA DEVICE FOR MOBILE COMMUNICATION TERMINAL

WIPO Patent Application WO/2014/029156

A1

Disclosed is an antenna device for a mobile communication terminal, comprising: a metal edge frame arranged on a casing of a mobile communication terminal, a first radiator and a second radiator which are arranged on an antenna carrier, and a circuit mainboard arranged in the mobile communication terminal. A main ground wire on the circuit mainboard is connected to the metal edge frame; the first radiator is provided with a coupling gap and is connected to a radio-frequency feed source on the circuit mainboard through a conducting connector; a grounding point on the first radiator is connected to the metal edge frame through the conducting connector; and as a dual-grounding parasitic antenna branch of the antenna device, the second radiator is used for expanding a low-frequency frequency bandwidth. The present invention is a coupling feed-in monopole antenna device. Compared with the prior art, the present invention has the advantages of an ultra-low low-frequency bandwidth, good antenna performance, high efficiency, etc., and also perfectly solves the problem of the coexistence of large metal pieces and an antenna of a mobile communication terminal at the same time, thereby better ensuring the appearance of the metal texture of the mobile communication terminal on modelling.

ZHAO NING (CN)
LIU YONGSHAN (CN)
FENG BIN (CN)
TANG HAIJUN (CN)
LUO YIZHOU (CN)
GU LIANG (CN)
LI YANTAO (CN)

PCT/CN2012/082485

February 27, 2014

September 29, 2012

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GUANG DONG OPPO MOBILE TELECOMM CORP LTD (CN)

H01Q1/36; H01Q5/10

CN202797257U	2013-03-13
CN102593578A	2012-07-18
CN202444051U	2012-09-19
CN102361155A	2012-02-22
US20060061512A1	2006-03-23

YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY (CN)
广州粤高专利商标代理有限公司 (CN)

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