The AE3540WN2290 from Anatech Electronics is a Band Stop Filter with Stopband Frequency 3.48 to 3.6 GHz, Insertion Loss 3 dB, Rejection 50 dB, Power 10 W, VSWR 1.70:1. Tags: Module with Connectors, Notch Filter. More details for AE3540WN2290 can be seen below.