Multi-Octave, Reconfigurable Bandpass Filters

We report on the successful design of a low loss, dynamic center frequency, dynamic bandwidth, highly linear reconfigurable wide-band, multi-octave filer set. This filter assembly is implemented by combining MMICs with RF switches, high Q inductors, and state of the art heterogenous integration. The resulting reconfigurable bandpass filter operates from 0.4 to 4.0 GHz and is the front of a device set that extends to 18 GHz. The filter operates with over 450 filter selections, with contiguous bandpass filters with percent bandwidths from 5% to 50% bandwidth. Insertion loss ranges from 4 to 8 dB based on percent bandwidth and have a predicted IIP3 greater than 43 dBm.