Double frequency plane two antenna system for mobile terminal
Title：
Double frequency plane two antenna system for mobile terminal
Application Number：
 200710062860
Application Date：
 2007/01/19
Announcement Date：
 2007/07/25
Pub. Date：
Publication Number：
 101005291
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H04B 1/38H04M 1/02
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Ding Yuan, Du Zhengwei, Gong Ke, Feng Zhenghe
Key Words：
 mobile terminal, Double frequency, plane, two antenna system
Abstract：
 Characters are that two dual frequency plane type (DFPT) antenna units are symmetrical to longitudinal axis of PCB plate arranged the instance in the invention uses antenna unit in planar branchy inverse type using two branches to implement dual frequency operation of antenna, one from the other branches plays function for tuning resonant bandwidth and port impedance metal ground includes other metal part, T shaped, and dual inverse L shaped structure except antenna in use for simulating comm. system using T shaped ground structure to reduce cross coupling between left and right two antenna units in DFPT through dual inverse L shaped structure, the two antenna units in DFPT adjusts low frequency in assistance two DFPT antenna units and feed line are printed on same plane of PCB metal ground is printed in the other plane of PCB. Features are: low cost, easy of production and integration. The disclosed antenna is especially suitable to wireless comm. mobile terminal.
Claim：
Priority：
PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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