The D5CTN-4000/6000-100MHZ-O/O-MQI from K&L Microwave is a Digitally Controlled Band Reject Filter with a tunable stopband from 4 to 6 GHz and passband from DC to 6 GHz. In the passband, it provides an insertion loss of less than 1 dB and a VSWR of 2:1. The filter requires +12 VDC supply voltage and has USB (standard), GPIB, RS-232, and RS-422 remote interfacing options with an innovative topology that allows for higher frequency than other tunable notch filters. It is available in a cabinet with SMA coaxial connectors and is suitable for applications such as ATE labs, wireless communications, and surveillance.
