| Presentation | 1999/10/22 Non-destructive masurement of complex permittivity of lossy dielectric slabs by using quadrapole anttena Misao Furukawa, Atsuhiro Nishikata, Yasutaka Shimizu, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A non-destructive, non-contact measurement method for the complex permittivity of lossy dielectric slabs is investigated. A precise quadrapole antenna system is constructed and actual measurements are performed by using it. The complex permittivities of three kinds of carbon-mixed polystyrene foam slabs of 40mm-thick are measured at VHF band. Compared to a destructive measurement data by means of parallel plate capacitor method, the presented method is found to have better reproducibility, similar frequency characteristics at frequencies below 140 MHz. Analysis model assumes that the slab material is infinitely large, and the assumption is not always true. To evaluate the influence of the slab edges, measurement is performed by moving the antenna system toward slab edges. This gives a practical means to evaluate the measurement error due to the presence of the edge. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Quadrapole antenna / Dipole antenna / Dielectric slab / Permittivity measurement / Non-destructive method / Non-contact method / VHF band |
| Paper # | MW99-137 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 1999/10/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Microwaves (MW) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Non-destructive masurement of complex permittivity of lossy dielectric slabs by using quadrapole anttena |
| Sub Title (in English) | |
| Keyword(1) | Quadrapole antenna |
| Keyword(2) | Dipole antenna |
| Keyword(3) | Dielectric slab |
| Keyword(4) | Permittivity measurement |
| Keyword(5) | Non-destructive method |
| Keyword(6) | Non-contact method |
| Keyword(7) | VHF band |
| 1st Author's Name | Misao Furukawa |
| 1st Author's Affiliation | Graduate school of Science and Engineering, Tokyo Institute of Technology() |
| 2nd Author's Name | Atsuhiro Nishikata |
| 2nd Author's Affiliation | CRADLE, Tokyo Insutitute of Technology |
| 3rd Author's Name | Yasutaka Shimizu |
| 3rd Author's Affiliation | Graduate school of Decision Science and Technology, Tokyo Institute of Technology |
| Date | 1999/10/22 |
| Paper # | MW99-137 |
| Volume (vol) | vol.99 |
| Number (no) | 371 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |