Integrated W-band GaAs MMIC Modules for Multi-Gigabit Wireless Communication Systems

70-90 GHz integrated receive and transmit modules with sub-harmonic frequency translation were developed using a GaAs MMIC chip set. These have a reported -3 dB bandwidth above 9 GHz and 6 GHz respectively for the down-converter and up-converter. With a common 39.25 GHz LO frequency, the modules are well suited for the RF transceivers of full-duplex wireless communication systems operating in both 71-76 and 81- 86 GHz bands using the lower or upper side-band conversion in each chosen (receive or transmit) direction.