Title :
G/T of multi-segment active arrays - dependence on array configuration
Author :
Busuioc, Dan ; Shahabadi, Mahmoud ; Borji, Amir ; Safavi-Naeini, Safieddin
Author_Institution :
Waterloo Univ., Ont., Canada
Abstract :
A formulation for general active array optimization is proposed, integrating front end elements such as low noise amplifier, phase shifter, and arbitrary feed networks. A generalized G/T formulation is discussed for active arrays. G/T is the antenna gain over effective system temperature, and is directly related to the signal-to-noise ratio at the system output (Lee, J.J., IEEE Trans. Antennas and Propag., vol.41, no.2, p.241-4, 1993). Tradeoff between module gain/size, feed losses, and amplifier gains/noise figures and their effect on the G/T and SNR of different arrays is shown.
Keywords :
active antenna arrays; amplifiers; antenna feeds; antenna theory; optimisation; random noise; temperature; SNR; amplifier gain; amplifier noise figure; antenna gain; array configuration; effective system temperature; feed losses; feed networks; front end elements; low noise amplifier; module gain; module size; multi-segment active arrays; phase shifter; signal-to-noise ratio; Active noise reduction; Antenna arrays; Antenna feeds; Low-noise amplifiers; Noise figure; Phase noise; Phase shifters; Phased arrays; Signal to noise ratio; Temperature;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1329571
