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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
La diffraction par un coin composite composé d'un conducteur parfait et d'un diélectrique avec pertes est étudiée à l'aide de la méthode des rayons cachés de diffraction (HRD). Le principe habituel de l'optique géométrique est utilisé pour tracer non seulement les rayons ordinaires incidents sur la limite éclairée, mais également les rayons cachés incidents sur la limite d'ombre. Les constantes de propagation modifiées sont adoptées pour représenter la transmission d'onde plane non uniforme à travers le diélectrique avec perte. Les coefficients de diffraction HRD sont construits régulièrement par la somme des fonctions cotangentes, qui ont une correspondance biunivoque avec les rayons ordinaires et cachés. La période angulaire des fonctions cotangentes est ajustée pour satisfaire la condition de bord à l'extrémité du coin composite. La précision des coefficients de diffraction HRD dans la région physique est vérifiée en montrant dans quelle mesure les coefficients de diffraction dans la région complémentaire satisfont à la condition de champ nul.
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Se-Yun KIM, "Hidden Rays of Diffraction for a Composite Wedge Composed of a Perfect Conductor and a Lossy Dielectric" in IEICE TRANSACTIONS on Communications,
vol. E94-B, no. 2, pp. 484-490, February 2011, doi: 10.1587/transcom.E94.B.484.
Abstract: The diffraction by a composite wedge composed of a perfect conductor and a lossy dielectric is investigated using the hidden rays of diffraction (HRD) method. The usual principle of geometrical optics is employed to trace not only ordinary rays incident on the lit boundary but also hidden rays incident on the shadow boundary. The modified propagation constants are adopted to represent the non-uniform plane wave transmission through the lossy dielectric. The HRD diffraction coefficients are constructed routinely by the sum of the cotangent functions, which have one-to-one correspondence with both ordinary and hidden rays. The angular period of the cotangent functions is adjusted to satisfy the edge condition at the tip of the composite wedge. The accuracy of the HRD diffraction coefficients in the physical region is checked by showing how closely the diffraction coefficients in the complementary region satisfy the null-field condition.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E94.B.484/_p
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@ARTICLE{e94-b_2_484,
author={Se-Yun KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={Hidden Rays of Diffraction for a Composite Wedge Composed of a Perfect Conductor and a Lossy Dielectric},
year={2011},
volume={E94-B},
number={2},
pages={484-490},
abstract={The diffraction by a composite wedge composed of a perfect conductor and a lossy dielectric is investigated using the hidden rays of diffraction (HRD) method. The usual principle of geometrical optics is employed to trace not only ordinary rays incident on the lit boundary but also hidden rays incident on the shadow boundary. The modified propagation constants are adopted to represent the non-uniform plane wave transmission through the lossy dielectric. The HRD diffraction coefficients are constructed routinely by the sum of the cotangent functions, which have one-to-one correspondence with both ordinary and hidden rays. The angular period of the cotangent functions is adjusted to satisfy the edge condition at the tip of the composite wedge. The accuracy of the HRD diffraction coefficients in the physical region is checked by showing how closely the diffraction coefficients in the complementary region satisfy the null-field condition.},
keywords={},
doi={10.1587/transcom.E94.B.484},
ISSN={1745-1345},
month={February},}
Copier
TY - JOUR
TI - Hidden Rays of Diffraction for a Composite Wedge Composed of a Perfect Conductor and a Lossy Dielectric
T2 - IEICE TRANSACTIONS on Communications
SP - 484
EP - 490
AU - Se-Yun KIM
PY - 2011
DO - 10.1587/transcom.E94.B.484
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E94-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2011
AB - The diffraction by a composite wedge composed of a perfect conductor and a lossy dielectric is investigated using the hidden rays of diffraction (HRD) method. The usual principle of geometrical optics is employed to trace not only ordinary rays incident on the lit boundary but also hidden rays incident on the shadow boundary. The modified propagation constants are adopted to represent the non-uniform plane wave transmission through the lossy dielectric. The HRD diffraction coefficients are constructed routinely by the sum of the cotangent functions, which have one-to-one correspondence with both ordinary and hidden rays. The angular period of the cotangent functions is adjusted to satisfy the edge condition at the tip of the composite wedge. The accuracy of the HRD diffraction coefficients in the physical region is checked by showing how closely the diffraction coefficients in the complementary region satisfy the null-field condition.
ER -