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| A New Type of Highly Efficient, Second Harmonic, Broadband Tunable
Gyrotron Device Utilizing a Hybrid Interaction Scheme |
| Liu Ben-tian |
Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China;
Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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Abstract Based on the beam-wave mode-coupling theory, a principle of gyrotron device utilizing a hybrid interaction scheme of Backward-Wave Oscillator, Klystron Ballistic-Bunching and Traveling-Wave Tube (Gyro-BWO-KBB-TWT) is presented in this paper. Theoretical analysis of a Ka-band second harmonic tunable gyro-BWO-KBB-TWT indicates that the device efficiency of 40% and magnetic tuning bandwidth of 10% are achieved. A gyrotron oscillator employing the hybrid interaction scheme can realize highly efficient, high-power output and broadband continuous magnetic tuning in millimeter wave band.
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Received: 08 September 2004
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2006, Vol. 28 
