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脊形波导缝隙天线的共形FDTD分析

Conformal finite-difference time-domain analysis for a slot antenna in a ridged waveguide
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摘要 采用一种改进的局部网格共形时域有限差分法(FDTD)对脊形波导宽边缝隙天线进行数值分析,该方法部分修改磁场的迭代方程,提高了计算精度。给出了计算所得到的波导缝隙天线阵单元的回波损耗参数(S11)和方向图,通过与实验结果相比较,两者吻合得较好,从而证明了该分析模型和计算方法的正确性与有效性。 A modified locally conformal finite-difference time-domain technique is used to analyze a broad-wall slot antenna in a ridged waveguide. This method partly modifies the H field equations in order to improve the computational accuracy.The computational results of antenna' s directivity pattern and S11 parameters are compared and in good agreement with the experimental results. The results show that the methods of modeling and calculating are correct and valid.
出处 《系统工程与电子技术》 EI CSCD 北大核心 2006年第1期20-22,98,共4页 Systems Engineering and Electronics
基金 "973"国家安全重大基础研究项目资助课题(51307)
关键词 电磁计算 方向图 局部网格FDTD 脊形波导缝隙天线 回波损耗参数 electromagnetic calculation directivity pattern locally conformal FDTD ridged waveguide slot antenna return wave loss parameter
作者简介 郑秋容(1973-),男,博士研究生,主要研究方向为电磁场数值计算,波导缝隙天线,光子晶体。E-mail:zqr1620@sina.com.
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参考文献9

  • 1COHN S B.Properties of ridged waveguide[J].Proc.IRE,1947,35(8):783-788.
  • 2PYLE J R.The cutoff waveguide of TE10 mode in ridge rectangular waveguide of any aspect ratio[J].IEEE,Trans.,1966:MTT-14(4):175-184.
  • 3KONISHI Y.Simplified 13Gz low-noise converter with mounted planar circuit in waveguide[J].IEEE,Trans.1974:MTT-22(4):451-454.
  • 4MONTGOMERY J P.The complete eigenvalue solution of ridged waveguide[J].IEEE,Trans.1971;MTT-19(6):547-555.
  • 5UTSUMI Y.Variational analysis of ridged waveguides mode[J].IEEE,Trans.1985,MTT-33(2):111-120.
  • 6KIM G Y.Computation of waveguide modes for waveguide os arbitrary Cross-section[J].IEE,Proc.1990; 137,Pt.H(2):145-149.
  • 7SWAMINATION M.Computation of cut-off wave numbers of TE and TM modes in waveguide of arbitrary cross-section using a surface integralformulation[J].IEEE,Trans,1990:MTT-38(2):154-159.
  • 8YU Wenhua,MITTRA R.A conformal FDTD algorithm modeling perfectly conducting of objects with curved shaped surfaceds and edges[J].IEEE Antennas and Propagation Magazine,2000,42,(5):28-29.
  • 9王长青.电磁场计算中的时域有限差分法[M].北京:北京大学出版社,1994.18-30,57-60.

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