The 3750BP14D0900 from Johanson Technology is a Ceramic Bandpass Filter with a passband from 3300 to 4200 MHz. It has an insertion loss of less than 1.7 dB and provides an attenuation of more than 26 dB above and below the passband. The filter can handle a CW input power of up to 3 W and has a return loss of 13 dB. It is available in an SMD package and is ideal for 5G (n77 band) applications.