The AT-BPF-9098-10 from AT Microwave is a Waveguide Filter with Frequency 90 to 98 GHz, Insertion Loss -2 to -1 dB, Operating Temperature -40 to 85 Degree C, Rejection -40 dB, Rejection Frequency 70 to 120 GHz. Tags: Band Pass. More details for AT-BPF-9098-10 can be seen below.