The backward - wave oscillator ( bwo ) is one of the promising devices that can produce high - power microwaves and is intensively investigated because of its merits such as compact structure , high efficiency and good stability 相对论返波振荡器是有发展前途的高功率微波源之一,具有电磁结构紧凑、效率高和运行稳定等特点,在国际上受到广泛重视。
The special feature of the rco - tat project is that a slow - wave oscillator with a tapered slow - wave amplifier is combined into an unified microwave tube by a resonant cavity , so it will be a compact and high efficiency micowave source Rco - tat的特点是利用一个谐振腔将切仑科大型的振荡器与锥形结构慢波放大器有机地结合在一起，成为一个振荡?放大一体化的高效率微波源。
Radial transit time oscillator ( rtto ) is a promising novel high power microwave source based on the radial transit - time effect . it can operate under the condition of low impedance and without external guiding magnetic fields 径向渡越时间振荡器( radialtransittimeoscillator ，简称rtto )是一种前景光明的基于径向渡越时间效应的新型高功率微波源，能在低阻抗、无外加磁场条件下工作。
The key component of a high - power microwave device is the rf structure in which the beam and wave interact . to traveling wave tube ( twt ) . it is the slow - wave structure ( sws ) which basically determine the performance of the twt 高功率微波的重要研究领域之一是高功率微波源，而高功率微波源的核心部件是电子注与波进行互作用的场所，对行波管而言即为慢波系统，它的优劣直接影响高功率微波源的性能。
This dissertation present a new structure of rbwo and use the magic tool to simulate it and it is a good reference for further research on improving output power , efficiency and reducing the focusing magnetic 本文的研究工作提出了一种hl - rbwo的结构并对其进行了粒子模拟；在思想方法上，在如何提高rbwo的输出功率、输出效率、降低聚焦磁场，对于研究进一步开发和利用高功率高效率低磁场微波源有一定的参考意义。
Many high - power microwave ( hpm ) sources utilize an azimuthally symmetric output mode such as the tm 01 circular waveguide or the coaxial tem mode as output mode . if radiated directly these azimuthally symmetric modes will generate a doughnut - shaped pattern , with a null on boresight 许多高功率微波源产生的微波模式都是圆波导轴对称模式,由于其输出端口的口径场分布具有圆对称性,将导致轴向为零的环状远场方向图。
3 . the new microwave power supply ( mps ) can work in vacuum and its power measurement is convenient . the output power could be adjusted with the change of control voltage , and the reflecting power could be gotten by measuring the output voltage of attenuator and detector ( 3 )可在真空下稳定工作的新型微波源功率的测量较为方便，通过改变控制电压的大小可以调节输出功率，通过测量衰减检波器的输出电压信号可实现反射功率的测量。
As pointed out earlier , those sources eliminate the need for a heavy external magnet . two hpm sources magnetically insulates line oscillator ( milo ) and the reltron have been researched and improved . finally , a new high power microwave source , the axial acceletron is presented in this paper 首先对几种高功率窄带微波源进行了评估，然后着重研究无引导磁场最具备代表性的两种器件，磁绝缘线振荡器( milo )和super - reltron ，并提出了改进的措施。
Water dielectric pulse power modulator has been widely applied because of its merits of high energy storage density , compactness , and capability to drive low impedance high power microwave sources . research for multi - pulse operation of high power spark gap switch with high current and comprehending its physical properties are the basis to study multi - pulse operation or repetitive operation of water dielectric pulse power modulator 水介质脉冲功率调制器具有储能密度高,结构紧凑、与低阻抗微波源较好匹配的特点,因此得到广泛的应用,但是受到高功率、大电流气体开关的绝缘恢复的影响,水介质等低阻抗脉冲功率调制器的重复频率运行或多脉冲运行受到较大的限制。
Plasma technique was introduced in the research of high power microwave ( hpm ) sources in recent decade . the performance of hpm sources is improved much by filling plasma which is promising in this field . filled - plasma travelling - wave tubes ( fptwt ) is a part of them . it is the main task of this paper to research and design fptwt ' s electron optics system and simulate it 近十年来,在高功率微波的研究热潮中,引入了等离子体技术。引入等离子体能显著改善高功率微波源各方面的工作性能,已经成为高功率微波源发展一个颇有前景的新方向,等离子体行波管即是其一个典型代表。
