| Presentation | 2020-10-23 電磁場開領域問題におけるケルビン変換の適?範囲拡? Kengo Sugahara, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we discuss how to extend the Kelvin transformation proposed for low-frequency electromagnetic field, to electromagnetic wave problems. The Kelvin transformation is a coordinate transformation that maps an infinite space to a finite space, and can be regarded as a conformal transformation of Maxwell's equations. By using the concept of differential geometry to obtain the metric in the Kelvin domain and taking the ratio with the metric in the analysis domain, the spatial dependence of the material constants in the Kelvin domain is derived. When dealing with the open boundary problem of the radiated electromagnetic field, the analysis domain is truncated with lossy medium. The loss medium usually needs to be placed at a distance of more than a wavelength from the analysis domain. When the typical size of the analysis domain is much smaller than the wavelength, the total analysis domain becomes enormous. By applying the idea of Kelvin transformation and placing the lossy media in the Kelvin domain, it is possible to perform a numerical analysis within a realistic domain size. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Electromagnetic analysis / Kelvin transformation / open boundary problem / Perfectly matched layer / Semi-infinite gound |
| Paper # | EMCJ2020-42,MW2020-56,EST2020-44 |
| Date of Issue | 2020-10-15 (EMCJ, MW, EST) |
| Conference Information | |
| Committee | MW / EST / EMCJ / IEE-EMC |
|---|---|
| Conference Date | 2020/10/22(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yoshinori Kogami(Utsunomiya Univ.) / Shinichiro Ohnuki(Nihon Univ.) / Kensei Oh(Nagoya Inst. of Tech.) |
| Vice Chair | Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric) / Masayuki Kimishima(Advantest) / Jun Shibayama(Hosei Univ.) / Yasuhide Tsuji(Muroran Inst. of Tech.) / Atsuhiro Nishikata(Tokyo Inst. of Tech.) |
| Secretary | Tadashi Kawai(Fujitsu Labs.) / Kensuke Okubo(Saitama Univ.) / Shintaro Shinjo(Aoyama Gakuin Univ.) / Masayuki Kimishima(ENRI) / Jun Shibayama(Denso) / Yasuhide Tsuji(NAIST) / Atsuhiro Nishikata |
| Assistant | Kyoya Takano(Tokyo Univ. of Science) / Naoki Hasegawa(Softbank) / Hidenori Ishibashi(MitsubishiElectric) / Seiya Kishimoto(Nihon Univ.) / Nami Sasaki(Seiwa Electric MFG) / Hiroyoshi Shida(Tokin EMC Engineering) / Sho Muroga(Akita Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves / Technical Committee on Electronics Simulation Technology / Technical Committee on Electromagnetic Compatibility / Technical Meeting on Electromagnetic Compatibility |
|---|---|
| Language | JPN-ONLY |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | |
| Sub Title (in English) | * |
| Keyword(1) | Electromagnetic analysis |
| Keyword(2) | Kelvin transformation |
| Keyword(3) | open boundary problem |
| Keyword(4) | Perfectly matched layer |
| Keyword(5) | Semi-infinite gound |
| Keyword(6) | |
| 1st Author's Name | Kengo Sugahara |
| 1st Author's Affiliation | Kindai University(Kindai Univ.) |
| Date | 2020-10-23 |
| Paper # | EMCJ2020-42,MW2020-56,EST2020-44 |
| Volume (vol) | vol.120 |
| Number (no) | EMCJ-199,MW-200,EST-201 |
| Page | pp.pp.97-102(EMCJ), pp.97-102(MW), pp.97-102(EST), |
| #Pages | 6 |
| Date of Issue | 2020-10-15 (EMCJ, MW, EST) |