Pole/Zero’s bandpass filters are typically 2-pole, constant Q designs and aligned to provide a close approximation to a Butterworth response. Filter tuning ranges are available based on popular communication bands covering 1.5MHz to 3GHz. Units are available with standard 3dB bandwidths from 1.8 to 20%.
The Extended Range series was developed to address application needing a small package with wide tunability. Tuning ranges can cover multiple octaves.