The 4C3-12000-X200N11 from Reactel is a Cavity Bandpass Filter that has a center frequency of 12 GHz. It has a passband of 200 MHz (minimum) with an insertion loss of less than 1 dB and more than 40 dB attenuation in the stopband. This filter can handle an input power of 20 W. It is available in a module that measures 1.0 x 1.0 x 2.8 inches with N-type (female) connectors.
