DocumentCode
1926822
Title
Tunable RF filters using thin film barium strontium titanate based capacitors
Author
Tombak, A. ; Ayguavives, F.T. ; Maria, J.-P. ; Stauf, G.T. ; Kingon, A.I. ; Mortazawi, A.
Author_Institution
Dept. of Electr. Eng., North Carolina State Univ., Raleigh, NC, USA
Volume
3
fYear
2001
fDate
20-24 May 2001
Firstpage
1453
Abstract
Tunable lowpass and bandpass filters based on barium strontium titanate (BST) capacitors are reported. For the lowpass filter, 40% tunability was achieved at 9 V. Intermodulation distortion generated by the lowpass filters was also measured and predicted using a nonlinear model for the BST capacitors. The bandpass filter showed 45% tunability with an applied DC bias of 10 V.
Keywords
UHF filters; band-pass filters; barium compounds; circuit tuning; ferroelectric thin films; intermodulation distortion; low-pass filters; microwave filters; strontium compounds; varactors; (BaSr)TiO/sub 3/; 10 V; 9 V; applied DC bias; bandpass filters; ferroelectric thin films; intermodulation distortion; lowpass filters; nonlinear model; tunable RF filters; varactors; Band pass filters; Barium; Binary search trees; Capacitors; Distortion measurement; Intermodulation distortion; Radio frequency; Strontium; Titanium compounds; Transistors;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location
Phoenix, AZ, USA
ISSN
0149-645X
Print_ISBN
0-7803-6538-0
Type
conf
DOI
10.1109/MWSYM.2001.967176
Filename
967176
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