학술논문

Effect of noise in optically-fed phased array antennas for CDMA wireless networks
Document Type
Conference
Source
1997 IEEE International Conference on Personal Wireless Communications (Cat. No.97TH8338) Personal wireless communications Personal Wireless Communications, 1997 IEEE International Conference on. :244-247 1997
Subject
Communication, Networking and Broadcast Technologies
Signal Processing and Analysis
Components, Circuits, Devices and Systems
Optical noise
Phased arrays
Optical arrays
Phase noise
Antenna arrays
Multiaccess communication
Stimulated emission
Semiconductor optical amplifiers
Optical amplifiers
Erbium-doped fiber amplifier
Language
Abstract
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. The phase fluctuations make the main beam jitter around a mean value directly related to the mean and the variance of the amplified spontaneous emission induced random phase change.