Abstract
A multiresolution channel select filter topology is proposed for implementing a digitally-tunable bandpass response with ultra-wideband tuning range. This filter is composed of a chain of bimodal filter stages with self-complementary periodic frequency response. The frequency response behavior of this filter, the effect of parasitics, and the nonlinearities are studied in detail. A four-stage implementation is presented which is based on p-i-n diode switches and covers dc-2.5 GHz in 16 equal bandwidth channels with a maximum insertion loss of 6.7 dB.
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Schedule a callMore From: IEEE transactions on microwave theory and techniques
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