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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Печать: 0040-2508
ISSN Онлайн: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v72.i5.70
pages 447-460

ASYMPTOTIC EXPANSION IN THE NONLINEAR THEORY OF ELECTRONIC BEAM MICROWAVE TWT-M DEVICES

G. A. Alexeev
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine

Краткое описание

A method of constructing approximate analytical solutions to a nonlinear problem in the theory of TWT-M and BWT-M using asymptotic estimates of integral members in the equations for the HF-field amplitude and a counter expansion method are proposed. The method is developed as applicable to the TWT-M devices with taking into account the HF-energy ohmic losses and the electron kinetic energy variations in the process of interaction. An accuracy of the method is 5−10 % on different segments of the HF-signal distribution curve. Of a particular interest is the analytical investigation into multiplication properties of M-type beam devices. A possibility of creating a high performance single-section multiplier based upon the TWT-M is evidenced.


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