The AT-BPF-7585-12 from AT Microwave is a Waveguide Filter with Frequency 75 to 85 GHz, Insertion Loss -2.5 to -1 dB, Operating Temperature -40 to 85 Degree C, Rejection -50 to -30 dB, Rejection Frequency DC to 115 GHz. Tags: Band Pass. More details for AT-BPF-7585-12 can be seen below.