The CL9D43-300-CD-SFF from Quantic PMI is a Combline Bandpass Filter with a center frequency of 9.43 GHz. It has a 3dB bandwidth of over 300 MHz with a passband VSWR of less than 1.5:1 and more than 40 dB of rejection. It is available in a package that measures 2.25 x 0.40 x 0.50 inches and has SMA female connectors.