DocumentCode
3456878
Title
Higher phase-tunable phase shifters using DGS termination loads
Author
Han, Sang-Min ; Kim, Chul-Soo ; Lee, Seong-Soo ; Ahn, Dal ; Itoh, Tatsuo
Author_Institution
Samsung Adv. Inst. of Technol., Suwon, South Korea
Volume
2
fYear
2005
fDate
4-6 Oct. 2005
Abstract
New phase shifters with higher phase shift values are presented using defected ground structures (DGSs). The varactor diodes are mounted on DGSs of termination loads to control the large phase variation of the DGS at resonance. Two types of phase shifters are implemented with a branch-line and a coupled line hybrid. The experimental results of the proposed phase shifters show 135% and 221% increases in maximum phase shifts, respectively, compared with those of conventional ones.
Keywords
phase shifters; varactors; DGS termination loads; defected ground structures; higher phase-tunable phase shifters; large phase variation; varactor diodes; Capacitance; Coupling circuits; Diodes; Insertion loss; Microstrip resonators; Phase shifters; Reflection; Resonance; Resonant frequency; Varactors;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 2005 European
Print_ISBN
2-9600551-2-8
Type
conf
DOI
10.1109/EUMC.2005.1610034
Filename
1610034
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