The AM2017B1590 from Anatech Electronics is a Band Pass Filter with Frequency 2.01 to 2.025 GHz, Bandwidth 15 MHz, Center Frequency 2017.5 MHz, Insertion Loss 2.5 dB, Rejection 30 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for AM2017B1590 can be seen below.