A 6.2-7.5 GHz tunable bandpass filter with integrated barium strontium titanate (BST) interdigitated varactors utilizing silver/copper metallization

Zhiping Feng, Wael M. Fathelbab, Peter G. Lam, Vrinda Haridasan, Jon Paul Maria, Angus I. Kingon, Michael B. Steer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

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.

Original languageEnglish (US)
Title of host publicationRWS 2009 IEEE Radio and Wireless Symposium, Proceedings
Pages638-641
Number of pages4
DOIs
StatePublished - Jul 21 2009
Event2009 IEEE Radio and Wireless Symposium, RWS 2009 - San Diego, CA, United States
Duration: Jan 18 2008Jan 22 2008

Publication series

NameRWS 2009 IEEE Radio and Wireless Symposium, Proceedings

Other

Other2009 IEEE Radio and Wireless Symposium, RWS 2009
CountryUnited States
CitySan Diego, CA
Period1/18/081/22/08

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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    Feng, Z., Fathelbab, W. M., Lam, P. G., Haridasan, V., Maria, J. P., Kingon, A. I., & Steer, M. B. (2009). A 6.2-7.5 GHz tunable bandpass filter with integrated barium strontium titanate (BST) interdigitated varactors utilizing silver/copper metallization. In RWS 2009 IEEE Radio and Wireless Symposium, Proceedings (pp. 638-641). [4957432] (RWS 2009 IEEE Radio and Wireless Symposium, Proceedings). https://doi.org/10.1109/RWS.2009.4957432