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Compact, frequency-agile, absorptive bandstop filters

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1 Author(s)
Jachowski, Douglas R. ; Electron. Sci. & Technol. Div., Naval Res. Lab., Washington, DC, USA

Two absorptive bandstop filter circuit topologies are introduced. The preferred topology is analyzed and its advantages over traditional approaches quantified. A corresponding varactor-tuned microstrip absorptive bandstop filter is described and its unique ability to maintain its attenuation while tuning across a broad frequency range using only resonant frequency tuning is demonstrated.

Published in:

Microwave Symposium Digest, 2005 IEEE MTT-S International

Date of Conference:

12-17 June 2005