| Presentation | 1995/9/19 Physical Optics Analysis of Beam Field Radiated from the Variable Radius of Concave Boundary Keiji Goto, Toyohiko Ishihara, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The beam field excited by the adiabatic whispering-gallery (WG) mode is examined by analyzing the physical optics integral asymptotically. The modal ray congruences of the adiabatic WG mode, incident on the surface of the variable radius of concave conducting boundary, are employed to approximate the surface currents, and the asymptotic treatment of the physical optics integral containing these currents provides the uniform beam field representation (UPO) consisting of the geometrical ray and the edge diffracted ray. By comparing the numerical solutions obtained from the PO integral and the Huygens-Green's formula, we show the validity of the UPO representation. We also show that the UPO representation is useful for calculation of the beam field by comparing with the UTD solution. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | concave boundary / beam field / physical optics / whispering-gallery mode / uniform asymptotic solution (UPO) |
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| Conference Information | |
| Committee | AP |
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| Conference Date | 1995/9/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Antennas and Propagation (A・P) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Physical Optics Analysis of Beam Field Radiated from the Variable Radius of Concave Boundary |
| Sub Title (in English) | |
| Keyword(1) | concave boundary |
| Keyword(2) | beam field |
| Keyword(3) | physical optics |
| Keyword(4) | whispering-gallery mode |
| Keyword(5) | uniform asymptotic solution (UPO) |
| 1st Author's Name | Keiji Goto |
| 1st Author's Affiliation | Department of Electrical Engineering, National Defense Academy() |
| 2nd Author's Name | Toyohiko Ishihara |
| 2nd Author's Affiliation | Department of Electrical Engineering, National Defense Academy |
| Date | 1995/9/19 |
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| Volume (vol) | vol.95 |
| Number (no) | 239 |
| Page | pp.pp.- |
| #Pages | 8 |
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