E-band simplex wireless data transmission and bandwidth-dependent performance analysis based on OFDM signals

摘要

In this paper the bandwidth dependent performance analysis of a transceiver system in E-band (71-76 GHz) frequency range is presented. The performance analysis includes the influence of baseband signal power variation and bandwidth variation on the error vector magnitude. Orthogonal frequency-division multiplexing (OFDM) modulation technique is used for the wireless data transmission. The difference of the error vector magnitude (EVM) degradation between different modulation schemes in OFDM signals is less than 0.4 dB above 3.5 GHz RF bandwidth, whereas below 3.5 GHz RF bandwidth, the difference of EVM degradation is approximately 1 dB. Maximum achieved data rate of 5 GHz RF bandwidth for 32-QAM OFDM modulation is 15.625 Gbps.