BFCV Bandpass Filters Mini-Circuits BFCV Bandpass Filters offer a 2000MHz to 28.8GHz frequency range, 50Ω impedance rating, and low insertion loss. These filters feature a wide rejection band and a compact size of 3.2mm x 2.5mm. The LTCC construction is made of multiple layers for high repeatability performance, Mini-Circuits BFCV Bandpass Filters are ideal for 5G telecommunications, radio links, test and measurement, broadband wireless, and communication systems.