The WBCTB10-2027.5-2035-2055-2062.5-40-1 from Wainwright Instruments is a Band Pass Filter with Frequency 2.035 to 2.055 GHz, Bandwidth 20 MHz, Center Frequency 2.045 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-2027.5-2035-2055-2062.5-40-1 can be seen below.