二次元電磁界シミュレーション方法 - Nippon Telegraph and Telephone Corporation

Title:

二次元電磁界シミュレーション方法

Document Type and Number:

Japanese Patent JP4040269

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a two-dimensional electromagnetic-field simulation method, in which a change in terms of time in a TM-mode electromagnetic field is calculated with secondary accuracy, when two mediums of different permittivities come into contact while one straight line tilted at 45 deg. with reference to Yee lattice axis is used as a boundary. SOLUTION: The two-dimensional electromagnetic-field simulation method is constituted, in such a way that a magnetic-field component in z-direction perpendicular to a plane is allocated to a lattice point of a type 1, that an electric field component in the y-direction and permittivity are allocated to a lattice point of type 2, that an electric-field component in x-direction and a permittivity are allocated to a lattice point of type 3, that changes in time in the electric-field component and the magnetic-field component are found by time-domain difference method and that, at this time, εi2 and εi1 which satisfy (εi1 +εi2 )/2=[(1+δ)ε1 +(1-δ)ε2 ]/2 and (1/εi1 +1/εi2 )/2=[(1+δ)/ε1 +(1-δ)/ε2 ]2 as permittivities are allocated to first proximity lattice points 6a, 6b and second proximity lattice points 7a, 7b.

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Inventors:

Takuo Hirono
Yuzo Yoshikuni

Application Number:

JP2001189190A

Publication Date:

January 30, 2008

Filing Date:

June 22, 2001

Export Citation:

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Assignee:

Nippon Telegraph and Telephone Corporation

International Classes:

G01R29/08; G06F17/50; G06F19/00

Domestic Patent References:

JP2003006554A
JP2000105259A
JP10253677A
JP11352166A
JP11295365A
JP11272717A

Other References:

廣野卓夫他、柴田泰夫、ルイウェイン、関俊司、吉國裕三,“標準的FDTD法(二次元・TE偏波)における二次精度媒質境界条件”,2000年電子情報通信学会総合大会講演論文集,日本,社団法人電子情報通信学会,2000年 3月 7日,エレクトロニクス,No.1,p.2
T.Hirono,Y.Shibata,W.W.Lui,S.Seki,Y.Yoshikuni,“The Second-Order Condition for the Dielectric Interface Orthogonal to the Yee-Lattice Axis in the FDTD Scheme”,IEEE MICROWAVE AND GUIDED LETTERS,米国,IEEE,2000年 9月,Vol.10,No.9,p.359-361

Attorney, Agent or Firm:

Yoshihiko Izumi
Shigeru Kobayashi

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