Effect of Noise in Optically-Fed Phased Array Antennas for CDMA Wireless Networks

摘要

The characteristics of an optically fed phased array antenna are affected by the amplitude and phase noise introduced by optical amplifiers (EDFA) used in the system. A theoretical derivation and a numerical computation of the effect of phase noise on antenna performance are given in this paper. The phase fluctuations make the main beam to jitter around a mean value directly related to the mean and the variance of the amplified spontaneous emission induced random phase change.