Numerical Analysis of Capacitive Discontinuities of Finite Thickness in Rectangular Waveguides Using the Modified Residue-Calculus Method

Toshihiko SHIBAZAKI; Teruhiro KINOSHITA; Takeharu SHIBAMOTO

Numerical Analysis of Capacitive Discontinuities of Finite Thickness in Rectangular Waveguides Using the Modified Residue-Calculus Method

Toshihiko SHIBAZAKI, Teruhiro KINOSHITA, Takeharu SHIBAMOTO

Full Text Views

0

Cite this

Summary :

The problem of electromagnetic scattering by capacitive discontinuities located in rectangular waveguides, in particular when dealing with discontinuous conductors of finite thickness, is analyzed using the modified residue-calculus method, and form of the equation suitable for a numerical calculation is derived. The incident wave is taken to be the dominant mode, and reflection and transmission properties of an asymmetric capacitive iris are discussed. After the modal representation of the filed, the modal matching is apply to satisfy the boundary conditions at the discontinuity. And using the modified residue-calculus method, simultaneous infinite equations, which are concerned with the scattered mode coefficients, are derived. Then they are approximated at the thick diaphragm. The solutions obtained take on the form of an infinite product, and a numerical solution based on the method of successive approximations is presented as a technique for concretely determining the reflection coefficients. As confirmation, experiments are also carried out in the X-band and close agreement is shown between the calculated and experimental values.

Publication: IEICE TRANSACTIONS on Electronics Vol.E79-C No.10 pp.1391-1398

Publication Date: 1996/10/25

Publicized

Online ISSN

DOI

Type of Manuscript: Special Section PAPER (Special Issue on Electromagnetic Theory-Foundations and Applications)

Category

Cite this

Copy

Toshihiko SHIBAZAKI, Teruhiro KINOSHITA, Takeharu SHIBAMOTO, "Numerical Analysis of Capacitive Discontinuities of Finite Thickness in Rectangular Waveguides Using the Modified Residue-Calculus Method" in IEICE TRANSACTIONS on Electronics, vol. E79-C, no. 10, pp. 1391-1398, October 1996, doi: .
Abstract: The problem of electromagnetic scattering by capacitive discontinuities located in rectangular waveguides, in particular when dealing with discontinuous conductors of finite thickness, is analyzed using the modified residue-calculus method, and form of the equation suitable for a numerical calculation is derived. The incident wave is taken to be the dominant mode, and reflection and transmission properties of an asymmetric capacitive iris are discussed. After the modal representation of the filed, the modal matching is apply to satisfy the boundary conditions at the discontinuity. And using the modified residue-calculus method, simultaneous infinite equations, which are concerned with the scattered mode coefficients, are derived. Then they are approximated at the thick diaphragm. The solutions obtained take on the form of an infinite product, and a numerical solution based on the method of successive approximations is presented as a technique for concretely determining the reflection coefficients. As confirmation, experiments are also carried out in the X-band and close agreement is shown between the calculated and experimental values.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e79-c_10_1391/_p

Copy

@ARTICLE{e79-c_10_1391,
author={Toshihiko SHIBAZAKI, Teruhiro KINOSHITA, Takeharu SHIBAMOTO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Numerical Analysis of Capacitive Discontinuities of Finite Thickness in Rectangular Waveguides Using the Modified Residue-Calculus Method},
year={1996},
volume={E79-C},
number={10},
pages={1391-1398},
abstract={The problem of electromagnetic scattering by capacitive discontinuities located in rectangular waveguides, in particular when dealing with discontinuous conductors of finite thickness, is analyzed using the modified residue-calculus method, and form of the equation suitable for a numerical calculation is derived. The incident wave is taken to be the dominant mode, and reflection and transmission properties of an asymmetric capacitive iris are discussed. After the modal representation of the filed, the modal matching is apply to satisfy the boundary conditions at the discontinuity. And using the modified residue-calculus method, simultaneous infinite equations, which are concerned with the scattered mode coefficients, are derived. Then they are approximated at the thick diaphragm. The solutions obtained take on the form of an infinite product, and a numerical solution based on the method of successive approximations is presented as a technique for concretely determining the reflection coefficients. As confirmation, experiments are also carried out in the X-band and close agreement is shown between the calculated and experimental values.},
keywords={},
doi={},
ISSN={},
month={October},}

Copy

TY - JOUR
TI - Numerical Analysis of Capacitive Discontinuities of Finite Thickness in Rectangular Waveguides Using the Modified Residue-Calculus Method
T2 - IEICE TRANSACTIONS on Electronics
SP - 1391
EP - 1398
AU - Toshihiko SHIBAZAKI
AU - Teruhiro KINOSHITA
AU - Takeharu SHIBAMOTO
PY - 1996
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E79-C
IS - 10
JA - IEICE TRANSACTIONS on Electronics
Y1 - October 1996
AB - The problem of electromagnetic scattering by capacitive discontinuities located in rectangular waveguides, in particular when dealing with discontinuous conductors of finite thickness, is analyzed using the modified residue-calculus method, and form of the equation suitable for a numerical calculation is derived. The incident wave is taken to be the dominant mode, and reflection and transmission properties of an asymmetric capacitive iris are discussed. After the modal representation of the filed, the modal matching is apply to satisfy the boundary conditions at the discontinuity. And using the modified residue-calculus method, simultaneous infinite equations, which are concerned with the scattered mode coefficients, are derived. Then they are approximated at the thick diaphragm. The solutions obtained take on the form of an infinite product, and a numerical solution based on the method of successive approximations is presented as a technique for concretely determining the reflection coefficients. As confirmation, experiments are also carried out in the X-band and close agreement is shown between the calculated and experimental values.
ER -