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Optimization of noise performance for various topologies of microwave active recursive filters

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4 Author(s)
Delmond, M. ; IRCOM, Limoges Univ., France ; Billonnet, L. ; Jarry, B. ; Guillon, P.

This article deals with the improvement of the noise figure for three topologies of microwave active recursive filters. We show how, using a noise wave formalism , the noise factor of these filters can be effectively minimized by using appropriate unbalanced power dividers/combiners and an amplifier. A comparison between the different topologies is given. We start from measured results and validate our approach with simulated examples.

Published in:

Microwave Symposium Digest, 1998 IEEE MTT-S International  (Volume:3 )

Date of Conference:

7-12 June 1998