Quantic PMI Model APD-4-18G40G-20W-292FF is a 4 Way Power Divider that operates over the frequency range of 18 to 40 GHz with a maximum insertion loss of 2.4 dB and a typical isolation of 18 dB. Housing size is 2.05" x 1.38" x 0.39" and is outfitted with SMA female connectors.