The QBF-2613.5-2666.5-40 from Qualwave is a Band Pass Filter with Frequency 2.6135 to 2.6665 GHz, Bandwidth 53 MHz, Center Frequency 2640 MHz, Insertion Loss 0.8 dB, Upper Rejection 40 [email protected] GHz. Tags: Module with Connectors. More details for QBF-2613.5-2666.5-40 can be seen below.