| Presentation | 2001/6/15 A stuay on the oblique incidence properties of graded density fiber type absorbers K. Kashihara, K. Hosotani, T. Ashida, T. Mitsui, T. Kudo, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In DSRC (Dedicated Short Range communications) systems represented by the ETC (Electronic Toll collection), it is necessary to control the multiple reflections of radio waves from peripheral structures. With the ETC system, it is especially important for wave absorbers to have good absorption properties at high incident angles. We designed a three layer absorber from measurement results of graded density fibers, and added a surface dielectric layer, specified by ETC specification. Analysis of the four layer structure was made by using the transmission line theory. We found satisfactory ETC specifications by selecting optimal thickness of the surface dielectric layer. We designed a panel type absorber consisting of a surface dielectric layer with optimal thickness. We confirmed the newly developed wave absorber to have good absorption properties of more than 20 dB over incident angle ranging from 0 to 47.5 degrees at 5.8 GHz for TE and TM polarizations by arch method measurements. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Graded density fiber type absorber / 5.8GHz / Oblique incidence / Surface dielectric layer / ETC / DSRC |
| Paper # | EMCJ2001-22 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2001/6/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
| Secretary | |
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| Paper Information | |
| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A stuay on the oblique incidence properties of graded density fiber type absorbers |
| Sub Title (in English) | |
| Keyword(1) | Graded density fiber type absorber |
| Keyword(2) | 5.8GHz |
| Keyword(3) | Oblique incidence |
| Keyword(4) | Surface dielectric layer |
| Keyword(5) | ETC |
| Keyword(6) | DSRC |
| 1st Author's Name | K. Kashihara |
| 1st Author's Affiliation | Central Research Laboratory Technology Division MITSUBISHI CABLE INDUSTRIES, LTD. Central Research Laboratory Technology Civision() |
| 2nd Author's Name | K. Hosotani |
| 2nd Author's Affiliation | Research & Development Dept. Minoshima Works MITSUBISHI CABLE INDUSTRIES, LTD. |
| 3rd Author's Name | T. Ashida |
| 3rd Author's Affiliation | Research & Development Dept. Minoshima Works MITSUBISHI CABLE INDUSTRIES, LTD. |
| 4th Author's Name | T. Mitsui |
| 4th Author's Affiliation | Research & Development Dept. Minoshima Works MITSUBISHI CABLE INDUSTRIES, LTD. |
| 5th Author's Name | T. Kudo |
| 5th Author's Affiliation | Research & Development Dept. Minoshima Works MITSUBISHI CABLE INDUSTRIES, LTD. |
| Date | 2001/6/15 |
| Paper # | EMCJ2001-22 |
| Volume (vol) | vol.101 |
| Number (no) | 129 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |