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Title:
DIE-CASTING DUPLEXER AND DIE-CASTING METHOD
Document Type and Number:
WIPO Patent Application WO/2010/124594
Kind Code:
A1
Abstract:
A die-casting duplexer and die-casting method are provided. The die-casting duplexer comprises an upper cavity and a lower cavity; the lower cavity is molded through die-casting integrally together with a shell of a radio frequency remote unit (RRU); one end of the lower cavity is provided with an antenna feeder connector; one end of the lower cavity far away from the antenna feeder connector is die-cast with a lower filter cavity; the upper cavity is die-cast with an upper filter cavity, and a resonator is arranged in the upper filter cavity; the lower cavity is die-cast with a transmission line groove for placing a transmission line which is used for connecting the resonator with the antenna feeder connector; when the upper cavity and the lower cavity are matched together, the cavity which is formed by the upper filter cavity and the lower filter cavity being matched comprises a filter channel. The duplexer is divided into two independent cavities, namely the upper cavity and the lower cavity which are molded by a die through die-casting respectively, thus the process and manufacture are simple, and the space in the cavities of the duplexer is utilized effectively.

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Inventors:
UNO HENNINGSSON (SE)
BERNDT DOXNER (SE)
TORBJORN AHL (SE)
PER KALLQUIST (SE)
LIANG WUCHANG (CN)
ZHU YUNTAO (CN)
Application Number:
PCT/CN2010/072131
Publication Date:
November 04, 2010
Filing Date:
April 23, 2010
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
UNO HENNINGSSON (SE)
BERNDT DOXNER (SE)
TORBJORN AHL (SE)
PER KALLQUIST (SE)
LIANG WUCHANG (CN)
ZHU YUNTAO (CN)
International Classes:
H04B1/00
Foreign References:
CN101546853A2009-09-30
CN201060917Y2008-05-14
CN2664294Y2004-12-15
CN1838476A2006-09-27
US5905416A1999-05-18
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