The ECA8236P40E50A-DR from ECHO Microwave is a Band Pass Filter with Frequency 8.22 to 8.26 GHz, Insertion Loss 2.5 dB, Rejection 50 dB @ 8186.92MHz, Ripple 1 dB, Return Loss 20 dB. Tags: Cavity Filter. More details for ECA8236P40E50A-DR can be seen below.