Numerical Simulation of Microwave Pulse Coupling into the DielectricSlot on a Rectangular Cavity

LI Rui; QIAN Bao-Liang; ZHU Zhan-Ping; ZHAO Lin; LIU Qiang

Chinese Physics C> 2008, Vol. 32> Issue(S1) : 204-207

Numerical Simulation of Microwave Pulse Coupling into the DielectricSlot on a Rectangular Cavity

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Abstract：
In this paper, the finite-difference time-domain (FDTD) algorithm is employed to simulate microwave pulse coupling into the dielectric slot on a rectangular cavity. We investigate the factors that influence the coupling resonant peak and resonant frequency of the dielectric slot, including the slot length, slot width, and relative dielectric constant. Numerical results show that the equation of resonant frequency for microwave coupling into the dielectric slot is modified.
Finally, the resonant condition of rectangular cavity with a dielectric slot is provided.

References

[1]

. James Benford, John Swgle. High Power Microwaves. Norwood: 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: 国防科技大学, 2006)4. WANG J G, LIU G Z, ZHOU J S. Investigations Function for Linear Coupling of Microwave into Slots. High Power Laser and Particle Beams, 2003, 15(11): 1093-1099(in Chinese)(王建国, 刘国治, 周金山. 微波孔缝线性耦合函数研究. 强激光与粒子束, 2003, 15(11): 1093—1099)5. Yee K S. Numerical Solution of Intia1 Boundary Value Problems Involving Maxwell's Equations in Isotropic Media. IEEE, 1966, 14: 3206. Mur G. Absorbing Boundary Conditions for the Finite-Difference Approximation of the Time-Domain Electro-magnetic Field Equations. IEEE Trans, Electromagn. Com-pat., 1981, 23(4): 377-3827. Kasher J C, Yee K S. A Numerical Example of a Two Dimensional Scattering Problem Using a Subgrid. Applied Computational Electromagnetic Society Journal and Newsletter, 1987, 2(2): 75-102

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LI Rui, QIAN Bao-Liang, ZHU Zhan-Ping, ZHAO Lin and LIU Qiang. Numerical Simulation of Microwave Pulse Coupling into the DielectricSlot on a Rectangular Cavity[J]. Chinese Physics C, 2008, 32(S1): 204-207.

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Received: 2008-01-10
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Numerical Simulation of Microwave Pulse Coupling into the DielectricSlot on a Rectangular Cavity

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 dielectric slot on a rectangular cavity. We investigate the factors that influence the coupling resonant peak and resonant frequency of the dielectric slot, including the slot length, slot width, and relative dielectric constant. Numerical results show that the equation of resonant frequency for microwave coupling into the dielectric slot is modified.
Finally, the resonant condition of rectangular cavity with a dielectric slot is provided.