Ultra-high-speed six-port frequency-division-multiplexing V-band transceiver

This paper presents a new architecture of ultra-high data rate millimeter-wave transceiver based on six-port technology that is demonstrated for operating over the V-band frequency from 60 GHz to 64 GHz. Since the unlicensed bandwidth allocated in this frequency band is extremely large (around 7 GHz) in the North America, the frequency-division-multiplexing scheme is used by introducing four QPSK channels in the wireless communication link studied in this paper. The data rate reached is 4 Gbit/s. To obtain realistic system simulation results, the proposed millimeter-wave six-port receiver model is based on the measurements results of a fabricated V-band ceramic hybrid coupler circuit. Bit error rate results and comparison between single-carrier and multi-carrier architectures are presented and discussed, thus proving that the proposed wireless system is an excellent and efficient candidate for future high-speed wireless communication systems.