Particle simulation and experimental research on L-band double ladder cathode MILO

Dong, 王冬 Wang; Fen, 秦奋 Qin; Daibing, 陈代兵 Chen; Jie, 文杰 Wen; Xinkai, 张新凯 Zhang; Haishi, 安海狮 An

doi:10.3788/hplpb20102204.0857

Cited by 3 publications

(2 citation statements)

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“…It has the same structure parameters as those in Refs. [14]- [16], but its queuing discipline is different from those, which is shown in Fig. 2.…”

Section: Brief Introduction Of the Swsmentioning

confidence: 98%

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HEM₁₁mode magnetically insulated transmission line oscillator: Simulation and experiment

Wang¹,

Qin²,

Wen³

et al. 2012

Chinese Phys. B

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A novel magnetically insulated transmission line oscillator (MILO) in which a modified HEM11 mode is taken as its main interaction mode (HEM11 mode MILO) is simulated and experimented in this paper. The excitation of the oscillation mode is made possible by carefully adjusting the arrangement of each resonant cavity in a two-dimensional slow wave structure. The special feature of such a device is that in the slow-wave-structure region, the interaction mode is HEM11 mode which is a TM-like one that could interact with electron beams effectively; and in the coaxial output region, the microwave mode is TE11 mode which has a favourable field density pattern to be directly radiated. Employing an electron beam of about 441 kV and 39.7 kA, the HEM11 mode MILO generates a high power microwave output of about 1.47 GW at 1.45 GHz in particle-in-cell simulation. The power conversion efficiency is about 8.4 % and the generated microwave is in a TE11-like circular polarization mode. In a preliminary experiment investigation, high power microwave is detected from the device with a frequency of 1.46 GHz, an output energy of 43 J–47 J, and a pulse duration of 44 ns–49 ns when the input voltage is 430 kV–450 kV, and the diode current is 37 kA–39 kA.

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“…It has the same structure parameters as those in Refs. [14]- [16], but its queuing discipline is different from those, which is shown in Fig. 2.…”

Section: Brief Introduction Of the Swsmentioning

confidence: 98%

“…A simple way is to azimuthally divide the 1D SWS into several partitions, as in Refs. [14]- [16]. The cavity used in this paper is illustrated in Fig.…”

Section: Brief Introduction Of the Swsmentioning

confidence: 99%

HEM₁₁mode magnetically insulated transmission line oscillator: Simulation and experiment

Wang¹,

Qin²,

Wen³

et al. 2012

Chinese Phys. B

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Research progresses on Cherenkov and transit-time high-power microwave sources at NUDT

Zhang

et al. 2016

Matter and Radiation at Extremes

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Research progresses on Cherenkov and transit-time high-power microwave (HPM) sources in National University of Defense Technology (NUDT) of China are presented. The research issues are focused on the following aspects. The pulse-shortening phenomenon in O-type Cerenkov HPM devices is suppressed. The compact coaxial relativistic backward-wave oscillators (RBWOs) at low bands are developed. The power efficiency in M-Type HPM tubes without guiding magnetic field increased. The power capacities and power efficiencies in the triaxial klystron amplifier (TKA) and relativistic transit-time oscillator (TTO) at higher frequencies increased. In experiments, some exciting results were obtained. The X-band source generated 2 GW microwave power with a pulse duration of 110 ns in 30 Hz repetition mode. Both L- and P-band compact RBWOs generated over 2 GW microwave power with a power efficiency of over 30%. There is approximately a 75% decline of the volume compared with that of conventional RBWO under the same power capacity conditions. A 1.755 GHz MILO produced 3.1 GW microwave power with power efficiency of 10.4%. A 9.37 GHz TKA produced the 240 MW microwave power with the gain of 34 dB. A 14.3 GHz TTO produced 1 GW microwave power with power efficiency of 20%.

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High power microwave devices: Development since 1880

Hamamah

Ahmad

Gomes

et al. 2017

2017 IEEE Asia Pacific Microwave Conference (APMC)

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High power microwave systems have emerged as a promising new technology that has many applications, which include high power radar, directed energy weapons, laboratory sources for susceptibility and vulnerability testing of electronic systems. These systems are built, applied, and studied in many developed countries such as in United States of America and China. In the recent years, other countries such as Russia, Western Europe, Japan, Taiwan, India, South Korea, and Singapore have also entered the research spheres. In this paper an introduction to the emergence of HPM and the sequential evolution of the technology, that plays an important role in several applications, are discussed. The discussion extends to types of HPM sources, and their effects of electromagnetic interference on electronic systems.

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Particle simulation and experimental research on L-band double ladder cathode MILO

Cited by 3 publications

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HEM₁₁mode magnetically insulated transmission line oscillator: Simulation and experiment

HEM₁₁mode magnetically insulated transmission line oscillator: Simulation and experiment

Research progresses on Cherenkov and transit-time high-power microwave sources at NUDT

High power microwave devices: Development since 1880

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Particle simulation and experimental research on L-band double ladder cathode MILO

Cited by 3 publications

References 0 publications

HEM11mode magnetically insulated transmission line oscillator: Simulation and experiment

HEM11mode magnetically insulated transmission line oscillator: Simulation and experiment

Research progresses on Cherenkov and transit-time high-power microwave sources at NUDT

High power microwave devices: Development since 1880

Contact Info

Product

Resources

About

HEM₁₁mode magnetically insulated transmission line oscillator: Simulation and experiment

HEM₁₁mode magnetically insulated transmission line oscillator: Simulation and experiment