介绍了当前高功率微波(high power microwave,HPM)能量合成和功率合成的研究进展,并思考了下一步可能的发展方向。能量合成的关键在于HPM合成器,基于过模圆波导TM01模式滤波器的HPM合成器,能实现两路微波信号的同极化通道合路,并有效提...介绍了当前高功率微波(high power microwave,HPM)能量合成和功率合成的研究进展,并思考了下一步可能的发展方向。能量合成的关键在于HPM合成器,基于过模圆波导TM01模式滤波器的HPM合成器,能实现两路微波信号的同极化通道合路,并有效提高合成器的功率容量;在此基础上形成的滤波器及合成器网络,能够实现HPM多波段、多频率工作,或产生拍波。功率合成的关键在于对单个HPM微波源的频率和相位的控制。基于小信号相位牵引的新方法,实现了GW量级的HPM相位控制,注入功率比接近-43dB;同时,结合强流电子束加速器的同步控制、大功率固态注入源及相控阵天线等关键技术的发展,这些研究可为HPM源空间功率合成技术奠定基础。展开更多
Firstly, an X-band relativistic backward wave oscillator with a low guiding magnetic field is simulated, whose output microwave power is 520 MW. Then, an experiment is carried out on an accelerator to investigate a re...Firstly, an X-band relativistic backward wave oscillator with a low guiding magnetic field is simulated, whose output microwave power is 520 MW. Then, an experiment is carried out on an accelerator to investigate a relativistic backward wave oscillator with a permanent magnetic field whose strength is 0.46 T. When the energy of the electron is 630 keV and the current of the electron beam is 6.7 kA, a 15 ns width pulsed microwave with 510 MW output power at 8.0 GHz microwave frequency is achieved.展开更多
文摘介绍了当前高功率微波(high power microwave,HPM)能量合成和功率合成的研究进展,并思考了下一步可能的发展方向。能量合成的关键在于HPM合成器,基于过模圆波导TM01模式滤波器的HPM合成器,能实现两路微波信号的同极化通道合路,并有效提高合成器的功率容量;在此基础上形成的滤波器及合成器网络,能够实现HPM多波段、多频率工作,或产生拍波。功率合成的关键在于对单个HPM微波源的频率和相位的控制。基于小信号相位牵引的新方法,实现了GW量级的HPM相位控制,注入功率比接近-43dB;同时,结合强流电子束加速器的同步控制、大功率固态注入源及相控阵天线等关键技术的发展,这些研究可为HPM源空间功率合成技术奠定基础。
文摘Firstly, an X-band relativistic backward wave oscillator with a low guiding magnetic field is simulated, whose output microwave power is 520 MW. Then, an experiment is carried out on an accelerator to investigate a relativistic backward wave oscillator with a permanent magnetic field whose strength is 0.46 T. When the energy of the electron is 630 keV and the current of the electron beam is 6.7 kA, a 15 ns width pulsed microwave with 510 MW output power at 8.0 GHz microwave frequency is achieved.
