Experimental research on Ku-band magnetically insulated transmission line oscillator

Jiang, Tao; Zhang, Jiande; He, Juntao; Li, Zhiqiang; Ling, Junpu

doi:10.1063/1.4933351

Title: Experimental research on Ku-band magnetically insulated transmission line oscillator

Full Record
Other Related Research

Abstract

An improved Ku-band magnetically insulated transmission line oscillator is proposed and investigated experimentally. In the particle-in-cell simulation, the Ku-band MILO generates the microwave with a power of 1.62 GW and a frequency of 13 GHz at the input voltage of 474 kV. The device is fabricated based on the simulation results, and an experiment system is designed. In the preliminary experiments, output microwave with frequency of 13.02 GHz, power of 150 MW, and pulse width of 17 ns is generated, under the diode voltage of 450 kV. Analysis on the experiment results shows that plasma produced due to the large current hitting to the outside of the collection tank is the essential cause for the low amplitude of the microwave power and short pulse width.

Authors:

Jiang, Tao; Zhang, Jiande; He, Juntao; Li, Zhiqiang; Ling, Junpu ^[1]

College of Optoelectric Science and Engineering, National University of Defense Technology, Hunan 410073 (China)

Publication Date:: Thu Oct 15 00:00:00 EDT 2015

OSTI Identifier:: 22486418

Resource Type:: Journal Article

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 22; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLITUDES; ELECTRIC POTENTIAL; EXPERIMENT RESULTS; GHZ RANGE; MAGNETIC INSULATION; MICROWAVE RADIATION; OSCILLATORS; PLASMA; POWER TRANSMISSION LINES; PULSES; SIMULATION

Citation Formats


                    Jiang, Tao, Zhang, Jiande, He, Juntao, Li, Zhiqiang, and Ling, Junpu. Experimental research on Ku-band magnetically insulated transmission line oscillator.  United States: N. p., 2015. 
        Web.  doi:10.1063/1.4933351.

Copy to clipboard


                    Jiang, Tao, Zhang, Jiande, He, Juntao, Li, Zhiqiang, & Ling, Junpu. Experimental research on Ku-band magnetically insulated transmission line oscillator.  United States.  https://doi.org/10.1063/1.4933351

Copy to clipboard


                    Jiang, Tao, Zhang, Jiande, He, Juntao, Li, Zhiqiang, and Ling, Junpu. 2015.  
        "Experimental research on Ku-band magnetically insulated transmission line oscillator".  United States.  https://doi.org/10.1063/1.4933351.

Copy to clipboard


                    
@article{osti_22486418,

  title        = {Experimental research on Ku-band magnetically insulated transmission line oscillator},

  author       = {Jiang, Tao and Zhang, Jiande and He, Juntao and Li, Zhiqiang and Ling, Junpu},

  abstractNote = {An improved Ku-band magnetically insulated transmission line oscillator is proposed and investigated experimentally. In the particle-in-cell simulation, the Ku-band MILO generates the microwave with a power of 1.62 GW and a frequency of 13 GHz at the input voltage of 474 kV. The device is fabricated based on the simulation results, and an experiment system is designed. In the preliminary experiments, output microwave with frequency of 13.02 GHz, power of 150 MW, and pulse width of 17 ns is generated, under the diode voltage of 450 kV. Analysis on the experiment results shows that plasma produced due to the large current hitting to the outside of the collection tank is the essential cause for the low amplitude of the microwave power and short pulse width.},

  doi          = {10.1063/1.4933351},

  url          = {https://www.osti.gov/biblio/22486418},
  journal      = {Physics of Plasmas},

  issn         = {1070-664X},

  number       = 10,

  volume       = 22,

  place        = {United States},

  year         = {Thu Oct 15 00:00:00 EDT 2015},

  month        = {Thu Oct 15 00:00:00 EDT 2015}

}

Copy to clipboard

Journal Article:

https://doi.org/10.1063/1.4933351

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Proposal of a gigawatt-class L/Ku dual-band magnetically insulated transmission line oscillator

Journal Article Fan, Y.; Shu, T.; Zhong, H. - Physics of Plasmas

We present a gigawatt (GW)-class magnetically insulated transmission line oscillator (MILO) which is capable of generating dual-band high power microwaves (HPMs). The proposed device, deriving from previously studied complex MILO and dual-frequency MILO, is designed to produce two HPMs in L-band and Ku-band, respectively. It is found in particle-in-cell (PIC) simulation that when the diode voltage is 610 kV, HPMs with frequencies of 1.72 GHz and 14.6 GHz can be achieved with powers of 3.3 GW and 2.4 GW, respectively. The corresponding total power conversion efficiency is approximately 12.8%. Power difference of the two generated HPMs is approximately 1.4 dB, and frequency difference of themmore » reaches a level as high as ∼10 dB.« less
https://doi.org/10.1063/1.4897937
A long-pulse repetitive operation magnetically insulated transmission line oscillator

Journal Article Fan, Yu-Wei; Zhong, Hui-Huang; Zhang, Jian-De; ... - Review of Scientific Instruments

The improved magnetically insulated transmission line oscillator (MILO) is a gigawatt-class L-band high power microwave tube. It has allowed us to generate 3.1 GW pulse of 40 ns duration in the single-pulse operation and 500 MW pulse of 25 ns duration in the repetition rate operation. However, because of the severe impedance mismatch, the power conversion efficiency is only about 4% in the repetition rate operation. In order to eliminate the impedance mismatch and obtain repetitive long-pulse high-power microwave (HPM), a series of experiments are carried out and the recent progress is presented in this paper. In the single-pulse operation,more »« less
https://doi.org/10.1063/1.4876599
An improved X-band magnetically insulated transmission line oscillator

Journal Article Jinchuan, Ju; Yuwei, Fan; Huihuang, Zhong; ... - Physics of Plasmas

This paper presents an improved X-band magnetically insulated transmission line oscillator (MILO) design that addresses several deficiencies found in previous experiments. In the new structure, an improved design of the launch point region is introduced, which improves the electric field uniformity on the cathode surface in order to suppress cathode flare formation. In addition, a new design for the load region is presented where the end of the cathode consists of four polymer velvet rings, a mesh is adopted as the anode of the load, and a metal barrel is employed as the beam dump. These improvements reduce energy depositionmore »« less
https://doi.org/10.1063/1.3160625
Study on a discal TEM-TE{sub 11} mode converter loaded high-efficiency magnetically insulated transmission line oscillator

Journal Article Zhang, Xiaoping; Yuan, Chengwei; Li, Yangmei; ... - Review of Scientific Instruments

An integrative high power microwave device is proposed, which consists of a high-efficiency L-band Magnetically Insulated Transmission Line Oscillator (MILO) and a discal TEM–TE{sub 11} mode converter. The MILO with a shrunken load composed of a step-like cathode and a ladder-like beam collector can generate a 1.58 GHz, 5.7 GW microwave with the efficiency of 20.8% at the diode voltage of 560 kV in simulation. The discal converter utilizes a pair of sectorial two-double radial waveguides and a pair of sectorial cross section waveguides to adjust the phase-difference and realizes the mode conversion in a length of less than halfmore »« less
https://doi.org/10.1063/1.4936983
Repetitive operation of an L-band magnetically insulated transmission line oscillator with metal array cathode

Journal Article Qin, Fen; Wang, Dong; Xu, Sha; ... - Review of Scientific Instruments

We present the repetitive operation research results of an L-band magnetically insulated transmission line oscillator with metal array cathode (MAC-MILO) in this paper. To ensure a more uniform emission of electrons emitted from the cathode, metal plates with different outer radii and thicknesses are periodically arranged in longitudinal direction on the cathode substrate to act as emitters. The higher order mode depressed MILO (HDMILO) structure is applied to ensure stability of the tube. Comparison experiments are carried out between velvet cathode and MAC MILO driven by a 20 GW/40 Ω/40 ns/20 Hz pulse power system. Experimental results reveal that themore »« less
https://doi.org/10.1063/1.4945584

Similar Records