The MLUN-0618 from Micro Lambda Wireless, Inc. is a Tunable Filter with Frequency DC to 18.2 GHz, Tunable Frequency 6.0 to 18 GHz, Bandwidth 10 MHz, Rejection 40 to 60 dB, Input Power 10 to 28 dBm. Tags: Module with Connectors, YIG Filter. More details for MLUN-0618 can be seen below.