High output photodetector and CPW-fed slot antenna array for millimeter-wave fiber-radio system

In this paper, we present experimental results on millimeter-wave photodetection for a fiber-radio system. The experiment shows about 10 dBm and 7 dbm millimeter-wave output from the photodetector at 38 GHz and 60 GHz, respectively, which is close to the required power for a direct fed indoor millimeter-wave radiation system. To efficiently radiate the obtained millimeter-wave power, a CPW-fed slot antenna array directly integrated with the photodetector was designed and fabricated on a glass substrate at 38 GHz and 60 GHz. Simulation results for the antenna are also presented.