The PSD2040B2W from Cubic is a Diplexer that has a passband from DC-18 GHz (low port) and 22-40 GHz (high port). It has a passband insertion loss of less than 1 dB and provides more than 30 dBc of rejection in the stopband. This diplexer is based on Nuvotronics PolyStrata Technology and utilizes a ground-signal-ground wire-bondable launch. It is available in an SMT package that measures 8.50 x 4.60 x 1.37 mm and is ideal for EW and test and measurement applications.
