The SiMS23R9/1-5P2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 23.4 to 24.4 GHz, Center Frequency 23.9 GHz, Insertion Loss 1.6 dB, Rejection 30 dB @22.1GHz&25.3GHz, 40 dB @21.5GHz&25.6GHz, 50 dB @DC~20GHz, Upper Rejection 30 to 40 dB. Tags: Surface Mount, Cavity Filter. More details for SiMS23R9/1-5P2 can be seen below.