Wire-less endoscope capsule micro-band antenna device
Title：
Wire-less endoscope capsule micro-band antenna device
Application Number：
 200610012010
Application Date：
 2006/05/26
Announcement Date：
 2006/10/25
Pub. Date：
Publication Number：
 1851982
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H01Q 13/08, H01Q 1/22, A61B 1/00, A61B 1/04
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Yu Xueyi, Li Guolin, Wang Zhihua
Key Words：
 Wire-less, endoscope capsule, micro-band antenna device
Abstract：
 This invention relates to a microwave communication device field of radio endoscopes characterizing that said device is a micro-strip antenna device installed in a radio endoscopic capsule of 1cm internal diameter, which applies the microwave medium of low loss and increases the medium thickness to compensate the small electric thickness of the small size micro-strip antenna and increases its gain and efficiency, the antenna is prepared by a double-face print board technology, the resonance frequency in the free space is 2.45Hz, a bit higher than the central frequency of RF signals and the impedance bandwidth is 100MHz.
Claim：
Priority：
PCT：
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