H. Ezzedine et al., ANALYSIS AND OPTIMIZATION OF NOISE PERFORMANCE FOR VARIOUS TOPOLOGIESOF MICROWAVE ACTIVE RECURSIVE FILTERS USING NOISE WAVE TECHNIQUES, Microwave and optical technology letters, 18(4), 1998, pp. 269-275
In this paper, three topologies of microwave active recursive filters
are studied We show how, using a noise wave formalism, the noise facto
r of filters can be effectively minimized by using appropriate unbalan
ced power dividers/combiners and an amplifier. A comparison between th
e different topologies is given. We validate our approach with simulat
ed examples. (C) 1998 John Wiley & Sons, Inc.