The ADMV8440 from Analog Devices is a Tunable Band-pass Filter that operates from 19 to 38 GHz. It has a 27% bandwidth and a tuning voltage range from 0 to 15 V. The filter provides over 40 dB of rejection and has an amplitude settling time of 200 ns. It has an insertion loss of 7 dB, and a return loss of 10 dB, and can handle up to 20 dBm of RF input power. This filter is based on an MMIC design that minimizes microphonics and provides a dynamically adjustable solution for advanced communications applications.
This tunable filter is a smaller alternative to switched filter banks and cavity-tuned filters. It is available in a RoHS-compliant CHIP package that measures 2.55 x 1.18 x 0.15 mm and is ideal for airport scanners, test & measurement equipment, military radar & electronic warfare systems, and very small aperture terminal (VSAT) communications applications.
