DocumentCode
3122463
Title
A tunable high temperature superconducting bandpass filter using semiconductor varactors
Author
Chunguang Li ; Jia Wang ; Yongbo Bian ; Guoqiang Li ; Yun Wu ; Qiang Zhang ; Na Li ; Xu Wang ; Xueqiang Zhang ; Liang Sun ; Hong Li ; Yusheng He
Author_Institution
Nat. Lab. for Supercond., Inst. of Phys., Beijing, China
fYear
2013
fDate
7-11 July 2013
Firstpage
1
Lastpage
3
Abstract
A narrow band 4-pole varactor tuned high temperature superconducting (HTS) filter was design and fabricated. The center frequency of the filter can be tuned from 430 MHz to 720 MHz with a direct voltage up to 20V. The return loss is better than 10 dB in the whole tuning range. Insertion loss is in a range of 0.8~3.8 dB with 3dB fractional bandwidth about 3%.
Keywords
UHF filters; active filters; band-pass filters; superconducting filters; varactors; HTS filter; four pole varactor; frequency 430 MHz to 720 MHz; high temperature superconducting band-pass filter; high temperature superconducting filter; narrow band varactor; semiconductor varactor; Band-pass filters; Couplings; Insertion loss; Loss measurement; Resonator filters; Superconducting filters; Varactors; HTS; tunable filter; varactor;
fLanguage
English
Publisher
ieee
Conference_Titel
Superconductive Electronics Conference (ISEC), 2013 IEEE 14th International
Conference_Location
Cambridge, MA
Print_ISBN
978-1-4673-6369-3
Type
conf
DOI
10.1109/ISEC.2013.6604296
Filename
6604296
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