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Chinese Physics C> 2008, Vol. 32> Issue(S1) : 208-211 

Numerical Simulation of Microwave Pulse Coupling into the Rectangular Cavity with Aperture Arrays

  • In this paper, the finite-difference time-domain (FDTD) algorithm is employed to simulate microwave pulse coupling into the rectangular cavity with aperture arrays. In the case in which the long-side of the slot in aperture arrays is perpendicular to the incident electrical field, and the electrical distribution of each center of slot in the aperture arrays in the process of microwave pulse coupling into the rectangular cavity with aperture arrays is analyzed in detail. We find that the effect of field enhancement of the slot in the middle of all the slots which distribute in the direction parallel to the incident electrical field is minimum and increases in turn from the middle to both sides symmetrically. We
    also find that the effect of field enhancement of the slot in the middle of all the slots which distribute in the direction perpendicular to the incident electrical field is maximum and decreases in turn from the middle to both sides symmetrically. In the same time, we investigate the factors that influence the effect of field enhancement of the center of each slot and the coupling electrical distribution in the cavity, including the number of slots and the spacing between slots.
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  • References

    [1] . James Benford, John Swgle. High Power Microwaves. Nor-wood: Artech House, Inc., 19922. ZHU Z P. The Study on Microwave Coupling into Slot on a Cavity with a Block Inside. Changsha: National University of Defense Technology, 2005(in Chinese)(朱占平. 微波与内置物质块带缝腔体耦合的研究. 长沙: 国防科技大学, 2005)3. LIU Q. Study on the Coupling of Microwave Pulses into Monolayer and Nested Cavities Through Slots. Changsha:National University of Defense Technology, 2006(in Chinese)(刘强. 微波脉冲与带缝中层腔体、嵌套腔体耦合的研究.长沙国防科学技术大学, 2006）4. WANG J G, LIU G Z, ZHOU J S. High Power Laser and Particle Beams, 2003, 15(11): 1093-1099(in Chinese)(王建国, 刘国治, 金山. 强激光与粒子束, 2003, 15(11): 1093—1099)5. WANG J G, LIU G Z, CHEN Y S et al. Journal of Microwaves, 1995, 11(4): 244-251(in Chinese)(王建国, 刘国治, 陈雨声等. 微波学报, 1995, 11(4): 244—251)6. Yee K S. IEEE, 1966, 14: 3207. Mur G. IEEE Trans, Electromagn. Compat., 1981, 23(4):377-3828. Kasher J C, Yee K S. Applied Computational Electromagnetic Society Journal and Newsletter, 1987, 2(2): 75-102

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LI Rui, YANG Yi-Ming and QIAN Bao-Liang. Numerical Simulation of Microwave Pulse Coupling into the Rectangular Cavity with Aperture Arrays[J]. Chinese Physics C, 2008, 32(S1): 208-211.
LI Rui, YANG Yi-Ming and QIAN Bao-Liang. Numerical Simulation of Microwave Pulse Coupling into the Rectangular Cavity with Aperture Arrays[J]. Chinese Physics C, 2008, 32(S1): 208-211. shu
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Received: 2008-01-10
Revised: 1900-01-01
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Numerical Simulation of Microwave Pulse Coupling into the Rectangular Cavity with Aperture Arrays

    Corresponding author: LI Rui,
  • Received Date: 2008-01-10
  • Accepted Date: 1900-01-01
  • Available Online: 2008-01-04

Abstract: In this paper, the finite-difference time-domain (FDTD) algorithm is employed to simulate microwave pulse coupling into the rectangular cavity with aperture arrays. In the case in which the long-side of the slot in aperture arrays is perpendicular to the incident electrical field, and the electrical distribution of each center of slot in the aperture arrays in the process of microwave pulse coupling into the rectangular cavity with aperture arrays is analyzed in detail. We find that the effect of field enhancement of the slot in the middle of all the slots which distribute in the direction parallel to the incident electrical field is minimum and increases in turn from the middle to both sides symmetrically. We
also find that the effect of field enhancement of the slot in the middle of all the slots which distribute in the direction perpendicular to the incident electrical field is maximum and decreases in turn from the middle to both sides symmetrically. In the same time, we investigate the factors that influence the effect of field enhancement of the center of each slot and the coupling electrical distribution in the cavity, including the number of slots and the spacing between slots.

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