SiGe-SIMMWIC (Silicon Germanium - Silicon Millimeter Wave Integrated Circuit) integration technologies for the fabrication of monolithic integrated mm-wave circuits on high resistivity silicon are described. An integration technology for avalanche transit time diodes was developed for the realization of all mm-wave functions of a transmitter and receiver on a single chip. Active dipole antennas have been fabricated with a radiated power of 10 mW at 76.5 GHz. Also active antennas for synchronization with 1/3 of the radiating frequency (76.5 GHz) have been realized with a radiated power of 3 mW at 76.5 GHz and a synchronization bandwidth of 380 MHz. For the first time monolithic integrated coplanar SIMMWIC mixers have been fabricated with a c...