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Title: Investigation of a metallic photonic crystal high power microwave mode converter

Abstract

It is demonstrated that an L band metallic photonic crystal TEM-TE{sub 11} mode converter is suitable for narrow band high power microwave application. The proposed mode converter is realized by partially filling metallic photonic crystals along azimuthal direction in a coaxial transmission line for phase-shifting. A three rows structure is designed and simulated by commercial software CST Microwave Studio. Simulation results show that its conversion efficiency is 99% at the center frequency 1.58 GHz. Over the frequency range of 1.56-1.625 GHz, the conversion efficiency exceeds 90 %, with a corresponding bandwidth of 4.1 %. This mode converter has a gigawatt level power handling capability which is suitable for narrow band high power microwave application. Using magnetically insulated transmission line oscillator(MILO) as a high power microwave source, particle-in-cell simulation is carried out to test the performance of the mode converter. The expected TE{sub 11} mode microwave output is obtained and the MILO works well. Mode conversion performance of the converter is tested by far-field measurement method. And the experimental result confirms the validity of our design. Then, high power microwave experiment is carried out on a Marx-driven Blumlein water line pulsed power accelerator. Microwave frequency, radiated pattern and power are measuredmore » in the far-field region and the results agree well with simulation results. The experiment also reveals that no microwave breakdown or pulse shortening took place in the experimental setup.« less

Authors:
; ; ; ;  [1]
  1. Laboratory of High Power Microwave Technology, Institute of applied electronics, China academy of engineering physics, Mianyang, 621900 (China)
Publication Date:
OSTI Identifier:
22454441
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 5; Journal Issue: 2; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ACCELERATORS; CRYSTALS; DESIGN; EFFICIENCY; GHZ RANGE; PARTICLES; PULSES; SIMULATION; TRANSMISSION ELECTRON MICROSCOPY; WATER

Citation Formats

Wang, Dong, E-mail: mr20001@sina.com, Qin, Fen, Xu, Sha, Yu, Aimin, and Wu, Yong. Investigation of a metallic photonic crystal high power microwave mode converter. United States: N. p., 2015. Web. doi:10.1063/1.4907750.
Wang, Dong, E-mail: mr20001@sina.com, Qin, Fen, Xu, Sha, Yu, Aimin, & Wu, Yong. Investigation of a metallic photonic crystal high power microwave mode converter. United States. doi:10.1063/1.4907750.
Wang, Dong, E-mail: mr20001@sina.com, Qin, Fen, Xu, Sha, Yu, Aimin, and Wu, Yong. Sun . "Investigation of a metallic photonic crystal high power microwave mode converter". United States. doi:10.1063/1.4907750.
@article{osti_22454441,
title = {Investigation of a metallic photonic crystal high power microwave mode converter},
author = {Wang, Dong, E-mail: mr20001@sina.com and Qin, Fen and Xu, Sha and Yu, Aimin and Wu, Yong},
abstractNote = {It is demonstrated that an L band metallic photonic crystal TEM-TE{sub 11} mode converter is suitable for narrow band high power microwave application. The proposed mode converter is realized by partially filling metallic photonic crystals along azimuthal direction in a coaxial transmission line for phase-shifting. A three rows structure is designed and simulated by commercial software CST Microwave Studio. Simulation results show that its conversion efficiency is 99% at the center frequency 1.58 GHz. Over the frequency range of 1.56-1.625 GHz, the conversion efficiency exceeds 90 %, with a corresponding bandwidth of 4.1 %. This mode converter has a gigawatt level power handling capability which is suitable for narrow band high power microwave application. Using magnetically insulated transmission line oscillator(MILO) as a high power microwave source, particle-in-cell simulation is carried out to test the performance of the mode converter. The expected TE{sub 11} mode microwave output is obtained and the MILO works well. Mode conversion performance of the converter is tested by far-field measurement method. And the experimental result confirms the validity of our design. Then, high power microwave experiment is carried out on a Marx-driven Blumlein water line pulsed power accelerator. Microwave frequency, radiated pattern and power are measured in the far-field region and the results agree well with simulation results. The experiment also reveals that no microwave breakdown or pulse shortening took place in the experimental setup.},
doi = {10.1063/1.4907750},
journal = {AIP Advances},
number = 2,
volume = 5,
place = {United States},
year = {Sun Feb 15 00:00:00 EST 2015},
month = {Sun Feb 15 00:00:00 EST 2015}
}