An improved-performance V-band six-port receiver for future 5G short-range wireless communications

Performance analysis of a millimeter-wave direct conversion receiver (homodyne), based on the measurement results of recently fabricated V-band six-port circuit, is presented in this paper. In order to obtain realistic and accurate system simulation results, the model of the six-port demodulator is implemented using the powerful schematic platform of Keysight's Advanced Design System (ADS) and the measured S-parameters of the fabricated six-port. The performances of the six-port based direct conversion receiver model are assessed in terms of various PSK/QAM modulated signals, and Error Vector Magnitude (EVM) for different local-oscillator (LO) and RF power levels. The obtained results demonstrate that the six-port demodulator is a serious candidate for the homodyne receivers suited to the future 5G short-range wireless communication systems.