Abstract
It was for some time believed that it is impossible to remove noise from the slow waves of an electron beam [1]. Since the operation of a large class of microwave amplifiers depends on the coupling of the negative energy slow wave to a circuit, this belief led to the statement of various minimum noise figure theorems [2]. As a result of these theorems, much effort has been expended on the development of amplifiers which use the fast beam waves [3]; these waves may, in principle, be stripped of all emission excited noise.
The research reported in this paper was supported jointly by the U.S. Army Signal Corps, the U.S. Air Force and the U.S. Navy (Office of Naval Research).
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© 1963 N.V. Uitgeversmaatschappij Centrex
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Sturrock, P.A., van Hoven, G.C., Karp, A. (1963). Parametric refregeration discussion and experimental verification of the removal of slow-wave noise. In: Microwaves. Palgrave, London. https://doi.org/10.1007/978-1-349-00447-8_41
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DOI: https://doi.org/10.1007/978-1-349-00447-8_41
Publisher Name: Palgrave, London
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