The ECA10900P500D55AMF from ECHO Microwave is a Band Pass Filter with Frequency 10.65 to 11.15 GHz, Insertion Loss 2 dB, Rejection 55 dB @ 9600 to 10500MHz, Ripple 1.2 dB, Return Loss 18 dB. Tags: Cavity Filter. More details for ECA10900P500D55AMF can be seen below.