MMW Wireless Communication System Based On QPSK Format Using Photomixer and Coherent Detection

Millimeter wave (MMW) frequencies (30 - 300 GHz) are promising solution for the increasing demand for high data rate, UHD multimedia, HD gaming, security and surveillance. The generation of CW signal at MMW band and above is essential. We experimentally demonstrate MMW wireless communication system at W-band (75 - 110 GHz) with on-off keying (OOK) modulation format using optical heterodyning technique and digital coherent detection. The generation of MMW carrier signal and the wireless photonic transmission system enabled by using commercial off-the-shelf, ultra wideband and antenna integrated InGaAs p-i-n photomixer. The MMW carrier signal received and detected using Schottky barrier diode (SBD) integrated with MMW antenna.