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Network representation of gyrotron oscillator using frequency-domain analysis

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1 Author(s)
Abo-Elnor, O.A. ; Dept. of Electron. & Commun. Eng., Ain Shams Univ., Cairo, Egypt

In this paper, the classical oscillator theory is applied to the gyrotron using frequency-domain analysis. According to this theory, the gyrotron-now as an oscillator-is divided into active and passive subnetworks. Equivalent load admittance and device admittance are then defined to describe the linear and nonlinear parts of the oscillator. The equivalent operating point that controls the operation of the gyrotron is dependent not only on the biasing conditions, but also on the physical dimensions of the gyrotron cavity. The effects of operating point parameters on the possible amplitude and frequency variations are studied using frequency-domain analysis. This makes it possible to save both effort and time for the required repetitive calculations used to predict the behavior of the gyrotron for a proper design process. It is much easier and more accurate to study the gyrotron operation using frequency-domain analysis rather than classical time-domain analysis

Published in:

Radio Science Conference, 1998. NRSC '98. Proceedings of the Fifteenth National

Date of Conference:

24-26 Feb 1998