The QMC-BPF15-6004 from Quantum Microwave is a Waveguide Filter with Frequency 58 to 62.5 GHz, Insertion Loss 1.5 to 2.5 dB, Rejection 30 dB, Rejection Frequency 48 to 56.5 GHz / 63.5 to 77 GHz. Tags: Band Pass. More details for QMC-BPF15-6004 can be seen below.