Title :
A novel 360° analog phase shifter with linear voltage phase relationship
Author :
Liew, Yew Hui ; Joe, Jurianto ; Leong, Mook Seng
Author_Institution :
Nat. Univ. of Singapore, Singapore
fDate :
6/21/1905 12:00:00 AM
Abstract :
A novel 360° analog phase shifter with linear voltage phase relationship utilizing two parallel reflective networks is described. Conventionally, two 180° reflective networks connected in parallel are required to form a 360° linear phase shifter. Such a requirement does not apply in the phase shifter described in this paper. Each reflective network is composed of either two varactors connected in parallel with properly selected transmission line length or one varactor in parallel with open or short stub to form a parallel resonant circuit. The length of the transmission line in each of the reflective networks is selected such that it has nonlinear voltage-phase shift relations, but when these two reflective branches are connected in parallel, they will produce a linear voltage-phase relationship. Measurement results will be presented
Keywords :
UHF circuits; UHF phase shifters; circuit resonance; varactors; UHF phase shifters; analog phase shifter; linear voltage phase relationship; open stub; parallel reflective networks; parallel resonant circuit; short stub; varactors; Diodes; Distributed parameter circuits; Frequency; Impedance; Phase shifters; RLC circuits; Reflection; Resonance; Varactors; Voltage control;
Conference_Titel :
Microwave Conference, 1999 Asia Pacific
Print_ISBN :
0-7803-5761-2
DOI :
10.1109/APMC.1999.828037
