|Title:||Marginal stability design criterion for gyro-TWTs and comparison of fundamental with second harmonic operation||Authors:||Lin, A. T.
CHU, K. R.
Lin, C. C.
Kou, C. S.
McDermoti, D. B.
Luhmann, N. C.
|Issue Date:||1-Jan-1992||Journal Volume:||72||Journal Issue:||5-6||Source:||International Journal of Electronics||Abstract:||
Stability properties of both the fundamental and second harmonic gyrotron travelling wave amplifier (gyro-TWT) are examined with multi-mode particle simulations. The second harmonic cyclotron interaction with an axis-encircling electron beam is found to be more stable to oscillations and can yield significantly greater power than the fundamental harmonic gyro-TWT. A multiple stage interaction structure based on a marginal stability criterion is proposed and illustrated with examples of a 128kW fundamental gyro-TWT and a 532 kW second harmonic gyro-TWT, Stable amplification at much higher power levels is in principle possible. © 1992 Taylor & Francis Ltd.
|Appears in Collections:||物理學系|
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