DocumentCode
1468399
Title
Quadrupole gyromagnetic ferrite circular variable polariser loaded with a dielectric ring
Author
Che, W. ; Yung, E.K.N. ; Sha, K. ; Junding, W.
Author_Institution
Dept. of Electr. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Volume
148
Issue
1
fYear
2001
fDate
6/23/1905 12:00:00 AM
Firstpage
57
Lastpage
59
Abstract
The introduction of a thin dielectric ring helps to increase the differential phase shift of the quadrupole gyromagnetic ferrite variable polariser by about 20-30%. Furthermore, a double-step impedance transformer has been introduced to broaden the bandwidth from 4.06 to 14.5%. The peak power is 750 kW, average power is 500 W, and the switching time is about 25 μs
Keywords
circular waveguides; dielectric-loaded waveguides; electromagnetic wave polarisation; ferrite phase shifters; ferrite-loaded waveguides; gyromagnetic effect; impedance convertors; impedance matching; waveguide components; 25 mus; 500 W; 750 kW; average power; circular waveguide; dielectric ring; differential phase shift; double-step impedance transformer; peak power; quadrupole gyromagnetic ferrite circular variable polariser; switching time;
fLanguage
English
Journal_Title
Microwaves, Antennas and Propagation, IEE Proceedings
Publisher
iet
ISSN
1350-2417
Type
jour
DOI
10.1049/ip-map:20010219
Filename
917742
Link To Document