Analysis of factors in phase array antenna and RF units on system performance of the OFDM PHY of IEEE 802.11ad standard
This paper presents a system-level analysis based on the OFDM PHY of IEEE 802.11ad standard and phase array antenna application. The quantitative relationships between system non-ideal factors and system level parameter error vector magnitude (EVM) are given. The focused factors in phase shift antenna are mainly phase shifter resolution, antenna configuration, and in RF impairments are phase noise, PA nonlinearity and IQ mismatch. Besides, phase array antenna's gain superposition is specially studied and illustrated. This work provides RF designers with comprehensive system-level overviews of 802.11ad RF transceivers and phase array antennas for multi-giga bits/s wireless communications on a pre-silicon base.