Noise performances optimization of GAAS monolithic microwave active recursive filters using noise wave techniques

Ezzedine, H. ; Delmond, M. ; Billonnet, L. ; Jarry, B. ; Guillon, P. (1997) Noise performances optimization of GAAS monolithic microwave active recursive filters using noise wave techniques. In: Gallium Arsenide Applications Symposium. GAAS 1997, 3-5 September 1997, Bologna, Italy.

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Abstract

This article deals with the improvement of noise figure for microwave active recu rsive filters. We show, using a noise wave analysis [1], how the noise factor of a first-order recursive structure can he effectively minimized, by using appropriate unbalanced power dividers/combiners in association with an amplifier of given gain and noise factor values. We start from measured results of monolithic filters and validate our approach with simulated examples.

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