A Tunable Lumped-Element Bandpass Filter with Independent Continuous Tuning of Center Frequency and Bandwidth

An approach to design tunable bandpass filters on coupled series LC-tanks with variable capacitors is proposed. Such filters are shown able to provide an independent continuous tuning of center frequency and bandwidth. Design, simulated and measured characteristics of a three-pole varactor-tuned bandpass filter are presented.

Authors: A.E.Baskakova, V.M.Turgaliev, D.V.Kholodnyak

Direction: Проектирование и технология радиоэлектронных средств

Keywords: Bandpass filters, lumped elements, tenability

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