DocumentCode :
1394400
Title :
20 GHz tunable filter based on ferroelectric (Ba,Sr)TiO3 film varactors
Author :
Keis, V.N. ; Kozyrev, A.B. ; Khazov, M.L. ; Sok, J. ; Lee, J.S.
Author_Institution :
Microwave Cryoelectron. Lab., St. Petersburg Electrotech. Univ., Russia
Volume :
34
Issue :
11
fYear :
1998
fDate :
5/28/1998 12:00:00 AM
Firstpage :
1107
Lastpage :
1109
Abstract :
The tunability and dielectric losses of ferroelectric (Ba,Sr)TiO 3 film varactors were measured under DC voltage at microwave frequencies (~20 GHz). A new microwave two-pole tunable waveguide filter containing four ferroelectric (Ba,Sr)TiO3 film varactors was designed and tested. The frequency tuning of the filter results from the variation in capacitance of ferroelectric varactors with DC controlling voltage
Keywords :
barium compounds; circuit tuning; dielectric losses; ferroelectric thin films; microwave filters; strontium compounds; varactors; waveguide filters; (BaSr)TiO3; 20 GHz; DC controlling voltage; DC voltage; capacitance variation; dielectric losses; ferroelectric film varactors; frequency tuning; microwave frequencies; tunable filter; two-pole waveguide filter;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:19980784
Filename :
684580
Link To Document :
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