The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Um método de interpretação de fenômenos de inversão é recentemente proposto para componentes de campo dispersos transitórios retrógrados para polarizações E e H quando uma onda de pulso de banda ultralarga (UWB) irradiada de uma fonte de linha incide em um cilindro de metal bidimensional coberto com um camada média dielétrica sem perdas (cilindro metálico revestido). Uma solução assintótica no domínio do tempo (TD), que é referida como técnica de ponto de sela TD (TD-SPT), é derivada pela aplicação do SPT na avaliação de um campo disperso transitório reverso que é expresso por uma forma integral. O TD-SPT é representado por uma combinação de um raio óptico geométrico direto (DGO) e uma série GO refletida (RGO), sendo assim capaz de extrair e calcular qualquer componente de campo disperso transitório reverso a partir de uma forma de onda de resposta. O TD-SPT é útil na compreensão da forma de onda de resposta de um campo disperso transiente para trás por um cilindro de metal revestido porque pode nos fornecer o valor de pico e o tempo de chegada de qualquer componente de campo, nomeadamente componentes DGO e RGO, e interpretar analiticamente o fenômeno de inversão de qualquer componente de campo. A precisão, validade e praticidade do TD-SPT são esclarecidas comparando-o com dois tipos de soluções de referência.
Toru KAWANO
The National Defense Academy of Japan
Keiji GOTO
The National Defense Academy of Japan
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Toru KAWANO, Keiji GOTO, "Interpretation Method of Inversion Phenomena on Backward Transient Scattered Field Components by a Coated Metal Cylinder" in IEICE TRANSACTIONS on Electronics,
vol. E105-C, no. 9, pp. 389-397, September 2022, doi: 10.1587/transele.2021ECP5051.
Abstract: An interpretation method of inversion phenomena is newly proposed for backward transient scattered field components for both E- and H-polarizations when an ultra-wideband (UWB) pulse wave radiated from a line source is incident on a two-dimensional metal cylinder covered with a lossless dielectric medium layer (coated metal cylinder). A time-domain (TD) asymptotic solution, which is referred to as a TD saddle point technique (TD-SPT), is derived by applying the SPT in evaluating a backward transient scattered field which is expressed by an integral form. The TD-SPT is represented by a combination of a direct geometric optical ray (DGO) and a reflected GO (RGO) series, thereby being able to extract and calculate any backward transient scattered field component from a response waveform. The TD-SPT is useful in understanding the response waveform of a backward transient scattered field by a coated metal cylinder because it can give us the peak value and arrival time of any field component, namely DGO and RGO components, and interpret analytically inversion phenomenon of any field component. The accuracy, validity, and practicality of the TD-SPT are clarified by comparing it with two kinds of reference solutions.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2021ECP5051/_p
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@ARTICLE{e105-c_9_389,
author={Toru KAWANO, Keiji GOTO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Interpretation Method of Inversion Phenomena on Backward Transient Scattered Field Components by a Coated Metal Cylinder},
year={2022},
volume={E105-C},
number={9},
pages={389-397},
abstract={An interpretation method of inversion phenomena is newly proposed for backward transient scattered field components for both E- and H-polarizations when an ultra-wideband (UWB) pulse wave radiated from a line source is incident on a two-dimensional metal cylinder covered with a lossless dielectric medium layer (coated metal cylinder). A time-domain (TD) asymptotic solution, which is referred to as a TD saddle point technique (TD-SPT), is derived by applying the SPT in evaluating a backward transient scattered field which is expressed by an integral form. The TD-SPT is represented by a combination of a direct geometric optical ray (DGO) and a reflected GO (RGO) series, thereby being able to extract and calculate any backward transient scattered field component from a response waveform. The TD-SPT is useful in understanding the response waveform of a backward transient scattered field by a coated metal cylinder because it can give us the peak value and arrival time of any field component, namely DGO and RGO components, and interpret analytically inversion phenomenon of any field component. The accuracy, validity, and practicality of the TD-SPT are clarified by comparing it with two kinds of reference solutions.},
keywords={},
doi={10.1587/transele.2021ECP5051},
ISSN={1745-1353},
month={September},}
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TY - JOUR
TI - Interpretation Method of Inversion Phenomena on Backward Transient Scattered Field Components by a Coated Metal Cylinder
T2 - IEICE TRANSACTIONS on Electronics
SP - 389
EP - 397
AU - Toru KAWANO
AU - Keiji GOTO
PY - 2022
DO - 10.1587/transele.2021ECP5051
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E105-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2022
AB - An interpretation method of inversion phenomena is newly proposed for backward transient scattered field components for both E- and H-polarizations when an ultra-wideband (UWB) pulse wave radiated from a line source is incident on a two-dimensional metal cylinder covered with a lossless dielectric medium layer (coated metal cylinder). A time-domain (TD) asymptotic solution, which is referred to as a TD saddle point technique (TD-SPT), is derived by applying the SPT in evaluating a backward transient scattered field which is expressed by an integral form. The TD-SPT is represented by a combination of a direct geometric optical ray (DGO) and a reflected GO (RGO) series, thereby being able to extract and calculate any backward transient scattered field component from a response waveform. The TD-SPT is useful in understanding the response waveform of a backward transient scattered field by a coated metal cylinder because it can give us the peak value and arrival time of any field component, namely DGO and RGO components, and interpret analytically inversion phenomenon of any field component. The accuracy, validity, and practicality of the TD-SPT are clarified by comparing it with two kinds of reference solutions.
ER -