ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)


For citation:

Funtov A. A. Noise in resistive-wall amplifier of m-type with «thick» beam. Izvestiya VUZ. Applied Nonlinear Dynamics, 2018, vol. 26, iss. 2, pp. 59-68. DOI: 10.18500/0869-6632-2018-26-2-59-68

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
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Language: 
Russian
Article type: 
Article
UDC: 
621.385.6

Noise in resistive-wall amplifier of m-type with «thick» beam

Autors: 
Funtov Aleksandr Andreevich, Saratov State University
Abstract: 

The aim of our research is to study the noise in the resistive-wall amplifier with crossed electric and magnetic fields with a beam of finite thickness. The theory of the O-type resistivewall amplifier is well known, at least as a classical example of using of waves with negative energy. Theory of resistive-wall amplifier M-type, in which negative energy waves are also used, has not been studied until recently. It seems interesting to study noise in a device with crossed fields, especially since early work mentioned a possible low noise level. Method. Study of noise based of the previously constructed two-dimensional linear adiabatic theory of a device with an electron flux of finite thickness that moves in crossed static electric and magnetic fields (magnetron-type flux) between two flat surfaces with complex conductivity. The noise coefficient in such a device is first studied. The cases when both surfaces are metallic, or when one of the surfaces is metallic, and the other has active, capacitive or inductive conductivity are considered. Results and discussion. It is shown that the complex conductivity of one of the surfaces, when the other is metallic, does not give a noticeable advantage either in increasing the gain factor or in reducing the noise factor in comparison with the case of both metal surfaces. It is shown that obtaining larger gain and lowest noise figure correspond to the fill factor of the order of one.

Reference: 
  1. Warnecke R. Convegno di Electronica Etelevisione. Milano, 2, 706, 1954.
  2. Trubetskov D.I., Sharaevsky Y.P., Shevchik V.N. Noise phenomena in beam amplifiers of magnetron type. Reviews of electronic engineering. Ser. Microwave Electronics, no. 10 (204), October 1970. Moscow: Institute «Electronika» (in Russian).
  3. Funtov A.A. Wave processes in the electron beam in crossed static electric and magnetic fields as it moves in a medium with a complex conductivity. Izvestiya VUZ, Applied Nonlinear Dynamics, 2017, vol. 25, iss. 3 (in Russian).
  4. Sokolov D.V., Sokolskaya T.M. Application of the method of successive approximations to the analysis beam devices magnetron type with a beam of finite thickness. Proc. «Questions of Microwave Electronics», vol. 3, Saratov: Izd-vo SGU, 1967, pр. 39–54 (in Russian).
Received: 
23.01.2018
Accepted: 
29.01.2018
Published: 
30.04.2018
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