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Noise wave techniques analysis applied to various planar microwave active filter topologies

✍ Scribed by H. Ezzedine; M. Delmond; L. Billonnet; B. Jarry; P. Guillon

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 339 KB
Volume: 8
Category: Article
ISSN: 1096-4290
DOI: 10.1002/(sici)1099-047x(199803)8:2<116::aid-mmce5>3.0.co;2-l

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✦ Synopsis

This article deals with the improvement of noise figure for various topologies of microwave active filters. We show how, using a noise wave formalism, the noise factor of different filters can be analytically derived and effectively minimized. We validate our approach with simulated examples for each topology.

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In this paper, three topologies of microwa¨e acti¨e recur-si¨e filters are studied. We show how, using a noise wa¨e formalism, the noise factor of filters can be effecti¨ely minimized by using appropriate unbalanced power di¨idersrcombiners and an amplifier. A comparison between the different topolo