@inproceedings{3e2a7197f537490e90c832eab6bde111,
title = "A 6.2-7.5 GHz tunable bandpass filter with integrated barium strontium titanate (BST) interdigitated varactors utilizing silver/copper metallization",
abstract = "A 3rd-order combline tunable filter is implemented utilizing ferroelectric Barium Strontium Titanate (BST) interdigitated varactors. The filter and its varactors are integrated on a ceramic substrate using a simple resistive biasing circuit. Upon the application of a bias voltage ranging from 0 to 40 V the passband of the filter tuned from 6.2 to 7.5 GHz while maintaining a fractional bandwidth of approximately 13.8 %. Over the tuning band the passband insertion loss varied from 8.5 dB to 6.3 dB while the return loss was better than 10 dB.",
author = "Zhiping Feng and Fathelbab, {Wael M.} and Lam, {Peter G.} and Vrinda Haridasan and Maria, {Jon Paul} and Kingon, {Angus I.} and Steer, {Michael B.}",
year = "2009",
doi = "10.1109/RWS.2009.4957432",
language = "English (US)",
isbn = "9781424426997",
series = "RWS 2009 IEEE Radio and Wireless Symposium, Proceedings",
pages = "638--641",
booktitle = "RWS 2009 IEEE Radio and Wireless Symposium, Proceedings",
note = "2009 IEEE Radio and Wireless Symposium, RWS 2009 ; Conference date: 18-01-2008 Through 22-01-2008",
}