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A Study on the Reflection Type Analog Phase Shifter using Varactor and Branch Coupler  

유강희 (충주대학교 전자통신공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.3A, 2004 , pp. 311-317 More about this Journal
Abstract
A low loss reflection type analog phase shifter which is realized with two varactors and branch coupler. is described. A new design technique for the large phase shift is applied using short stub microstripe lines. This paper presented the realization of design and experimental results. Through the experiment using the duroid microstrip line and varactors, the phase of 2.26GHz signal is controlled to the DC voltage with the phase shift range of 170$^{\circ}$. The achieved insertion loss of less than 3㏈ and the return loss of mote than 12㏈ are achieved over all phase states.
Keywords
varactor; branch coupler; phase shifter; microstripe line;
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1 /
[ 진년강 ] / 마이크로파공학
2 Lowloss360°X-band analogue phase shifter /
[ Upshur,J.I.;Geller,B.D. ] / IEEE Int.Microw. symp.
3 360° Reflection -type Analogue Phase Shifter Implented with a single 90° branch-line coupler /
[ Tae Whan Yoo;Jae Ho Song ] / Electron. lett.   DOI   ScienceOn
4 A 360°reflection type diode phase modulator /
[ Henoch,R.T.;Tamm,P. ] / IEEE Trans. Microwave Tech.
5 A Low-loss <TEX>$K_u$</TEX>-band Monolithic Analog Phase Shiftes /
[ Chang Lee Chen;Willian. E. Countney ] / IEEE Trans. Microwave Theory Tech