Design of Tunable Branch-Line Coupler and Wideband Antenna

碩士 === 國立中正大學 === 電機工程研究所 === 103 === This thesis includes two parts. The first part is design of tunable branch-line coupler based on varactor diodes. By ultilizing varactor diodes on the four corners of branch-line couper, tunable operating band is achieved with good amplitude and phase difference...

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Bibliographic Details
Main Authors: Cheng-Yuan Lee, 李承遠
Other Authors: Ching-Wen Tang
Format: Others
Language:zh-TW
Published: 2015
Online Access:http://ndltd.ncl.edu.tw/handle/g723b9