| Presentation | 2011-07-22 A Study on Light-Weight Absorbers for Millimeter-Wave Band Using Foamed Polyimide Shigenori TAKANO, Takenori YASUZUMI, Osamu HASHIMOTO, Koji MORIUCHI, Toshifumi SAKATA, Takeshi OZAKI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, two-layered type wave absorber using foamed polyimide having light-weight and heat-resistance is proposed. Empirical formula of relative permittivity was calculated using the measured results when content rate of the carbon black was changed. Then the heat-resistance of the material was studied by changing the heating temperature. As the results, real part of the relative permittivity decraesed by 5.0 % and imaginary part decreased by 6.4 % at 300 ℃, but each part decreased by 22.1 and 45.3 % at 400 ℃. Two-layered type wave absorber was optimum designed by using genetic algorithm. Designed wave absorber showed that the center frequency of 38 GHz, 20dB fractional bandwidth of 51.3 %. Measured absoption characteristics agreed well with designed ones. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Foamed polyimide / heat-resistance / light-weight wave absorber / genetic algorithm |
| Paper # | MW2011-76,OPE2011-63,EST2011-62,MWP2011-44 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 2011/7/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | A Study on Light-Weight Absorbers for Millimeter-Wave Band Using Foamed Polyimide |
| Sub Title (in English) | |
| Keyword(1) | Foamed polyimide |
| Keyword(2) | heat-resistance |
| Keyword(3) | light-weight wave absorber |
| Keyword(4) | genetic algorithm |
| 1st Author's Name | Shigenori TAKANO |
| 1st Author's Affiliation | Department of Electrical Engineering and Electronics, College of Science and Engineering, Aoyama Gakuin University() |
| 2nd Author's Name | Takenori YASUZUMI |
| 2nd Author's Affiliation | Department of Electrical Engineering and Electronics, College of Science and Engineering, Aoyama Gakuin University |
| 3rd Author's Name | Osamu HASHIMOTO |
| 3rd Author's Affiliation | Department of Electrical Engineering and Electronics, College of Science and Engineering, Aoyama Gakuin University |
| 4th Author's Name | Koji MORIUCHI |
| 4th Author's Affiliation | I.S.T Corporation |
| 5th Author's Name | Toshifumi SAKATA |
| 5th Author's Affiliation | I.S.T Corporation |
| 6th Author's Name | Takeshi OZAKI |
| 6th Author's Affiliation | I.S.T Corporation |
| Date | 2011-07-22 |
| Paper # | MW2011-76,OPE2011-63,EST2011-62,MWP2011-44 |
| Volume (vol) | vol.111 |
| Number (no) | 147 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |