Simulation study on passive compression using helically corrugated waveguide

Ling Junpu; He Juntao; Zhang Jiande; Cao Yibing; Zhang Zehai; Jiang Tao

doi:10.3788/HPLPB20122403.0752

Volume 24 Issue 03

Jun. 2016

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(03): 752-756

Lu Bin, Cui Bohua. Analysis and design of terahertz waveguide filter[J]. High Power Laser and Particle Beams, 2013, 25: 1527-1529. doi: 10.3788/HPLPB20132506.1527

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Ling Junpu, He Juntao, Zhang Jiande, et al. Simulation study on passive compression using helically corrugated waveguide[J]. High Power Laser and Particle Beams, 2012, 24: 752-756. doi: 10.3788/HPLPB20122403.0752

Lu Bin, Cui Bohua. Analysis and design of terahertz waveguide filter[J]. High Power Laser and Particle Beams, 2013, 25: 1527-1529. doi: 10.3788/HPLPB20132506.1527

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Simulation study on passive compression using helically corrugated waveguide

doi: 10.3788/HPLPB20122403.0752

1.
College of Opto-electric Science and Engineering,National University of Defense Technology,Changsha 410073,China

Received Date: 2011-11-02
Rev Recd Date: 2011-12-10
Publish Date: 2012-03-05

Abstract

Abstract

A method for passive compression of a frequency-swept wave packet propagating through helically corrugated waveguide as the dispersive medium has been developed. By 3D fully electromagnetic particle-in-cell (PIC) code， the dispersion of a helically corrugated waveguide and the ways for improving the pulse compression ratio were investigated. The power compression ratio was 6.65 higher than previous simulation results after optimization. The simulation study demonstrates that a better compression result can be obtained by optimizing the frequency sweep mode of input microwave pulse， using improved elliptical waveguide and extending the length of the helical tapers.
- helically corrugated waveguide,
- passive compression of microwave pulse,
- frequency-swept wave,
- particle-in-cell simulation

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