Zulong Chen;Lei Wang;Junpu Ling;Lili Song;Juntao He;Jiawen Li
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引用次数: 0
Abstract
A novel method to realize modulated emission and transmission in the diode region is proposed to improve beam-wave interaction for high output power and conversion efficiency. Microwave energy leaked into the diode is utilized to form a modulated electromagnetic field to modulate the emission and transmission of the electron beam. This mechanism is conducive to achieving better modulation effects of electron beam and suppressing competitive modes through the resonant frequency component of initial current modulation. A low magnetic field (0.7 T) Q-band relativistic coaxial transit time oscillator (RCTTO) is designed with this mechanism to obtain a microwave power of 337 MW, under the diode voltage of 396 kV and current of 1.98 kA. Compared with an RCTTO with a normal emission mechanism, the conversion efficiency increases from 21.3% to 43%.
期刊介绍：
IEEE Transactions on Electron Devices publishes original and significant contributions relating to the theory, modeling, design, performance and reliability of electron and ion integrated circuit devices and interconnects, involving insulators, metals, organic materials, micro-plasmas, semiconductors, quantum-effect structures, vacuum devices, and emerging materials with applications in bioelectronics, biomedical electronics, computation, communications, displays, microelectromechanics, imaging, micro-actuators, nanoelectronics, optoelectronics, photovoltaics, power ICs and micro-sensors. Tutorial and review papers on these subjects are also published and occasional special issues appear to present a collection of papers which treat particular areas in more depth and breadth.
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