5G Band Pass Filters Johanson Technology 5G Band Pass Filters are designed for 5G networks. The cost-effective n77, n78, and n79 ceramic filters feature low insertion loss and offer high attenuation. The series has an operating frequency of 3.5GHz, 3.7GHz, and 4.7GHz and is available in a compact case (EIA 0603/0805). Johanson Technology 5G Filter Band Pass Filters are ideal for small cell systems, IoT, and automotive applications.