The ZVBP-40600-K1+ from Mini-Circuits is a Cavity Bandpass Filter with a passband from 37.7 to 43.5 GHz. It has a passband insertion loss of 1.8 dB and provides an out-of-band rejection of 88 dB (lower-band) and 79 dB (upper-band). This filter is designed by implementing resonant structures with very high Q-factor and narrow-band selectivity. It has an advanced filter design and construction that enables stopband width to be greater than thrice the center frequency. This filter combines a very low noise floor and insertion loss with excellent power handling capability, making it well-suited for transmitter and receiver front-end systems. It is available in a module that measures 3.15 x 0.63 x 0.54 inches with 2.92 mm (female) connectors and is ideal for 5G (bands n259 and n260) applications.