Generation of millimeter-wave radiation by optical mixing in FETs integrated with printed circuit antennas

The generation of continuous wave 60-GHz millimeter wave radiation from FETs integrated with planar antennas using optical mixing is demonstrated. The radiation was propagated through narrowband quasi-optical Fabry-Perot filters and heterodyne detected in a second FET antenna structure. A schematic representation of the experimental arrangement is given. The response of a tunable Fabry-Perot interferometer is measured. In addition to spectroscopic applications, this transmitter/receiver system demonstrates the feasibility of having optically fed arrays of millimeter-wave sources.>