The AGBPF263 from AmpliTech, Inc. is a Band Pass Filter with Frequency 20.5 to 32 GHz, Bandwidth 11.5 GHz, Center Frequency 26.3 GHz, Insertion Loss 0.74 to 2.20 dB, Lower Rejection 20 to 40 dB @8.4 to 14.4 GHz. Tags: Die. More details for AGBPF263 can be seen below.