FDTD analysis of S-parameters for a multi-mode waveguide with CW excitation

Author

Hirano, Takuichi ; Nishikata, Atsuhiro ; Hirokawa, Jiro ; Ando, Makoto

Author_Institution

Dept. of Int. Dev. Eng., Tokyo Inst. of Technol.

fYear

2006

fDate

9-14 July 2006

Firstpage

1587

Lastpage

1590

Abstract

In this paper, a new algorithm to obtain S-parameters using the FDTD for a multi-mode waveguide is presented. In the proposed method, the complex electric field expression is calculated in different two virtual planes, and weighting coefficients for incident and reflected waves can be obtained by solving two equations corresponding to the two virtual planes together with modal decomposition. As an example of the analysis, the vacuum window of a unit-cell for a slotted waveguide array for plasma excitation is analyzed. The frequency characteristic of reflection coefficients calculated by the FDTD method agrees well with that by the generalized scattering matrix (GSM)-method of moments (MoM) hybridization analysis

Keywords

S-matrix theory; S-parameters; electric fields; finite difference time-domain analysis; method of moments; waveguide theory; CW excitation; FDTD analysis; S-parameters; complex electric field expression; frequency characteristic; generalized scattering matrix; hybridization analysis; incident wave; method of moments; modal decomposition; multi-mode waveguide; plasma excitation; reflected wave; reflection coefficients; slotted waveguide array; vacuum window; virtual planes; weighting coefficients; Differential equations; Finite difference methods; Frequency; Matrix decomposition; Plasma properties; Plasma waves; Reflection; Scattering parameters; Time domain analysis; Transmission line matrix methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium 2006, IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

1-4244-0123-2

Type

conf

DOI

10.1109/APS.2006.1710860

Filename

1710860