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| Presentation | 2011-07-22 16:55 A Study on Light-Weight Absorbers for Millimeter-Wave Band Using Foamed Polyimide Shigenori Takano, Takenori Yasuzumi, Osamu Hashimoto (Aoyama Gakuin Univ.), Koji Moriuchi, Toshifumi Sakata, Takeshi Ozaki (I.S.T Corp.)  MW2011-76 OPE2011-63 EST2011-62 MWP2011-44 Link to ES Tech. Rep. Archives: MW2011-76 OPE2011-63 EST2011-62 MWP2011-44 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (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 $^\circ$C, but each part decreased by 22.1 and 45.3 \% at 400 $^\circ$C. 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) |
| (in English) | Foamed polyimide / Heat-resistance / Light-weight wave absorber / Genetic algorithm / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 149, EST2011-62, pp. 257-262, July 2011. | |
| Paper # | EST2011-62 | |
| Date of Issue | 2011-07-14 (MW, OPE, EST, MWP) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | MW2011-76 OPE2011-63 EST2011-62 MWP2011-44 Link to ES Tech. Rep. Archives: MW2011-76 OPE2011-63 EST2011-62 MWP2011-44 |
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| Conference Information | |
| Committee | OPE MW MWP EMT EST IEE-EMT |
| Conference Date | 2011-07-21 - 2011-07-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EST |
| Conference Code | 2011-07-OPE-MW-MWP-EMT-EST-EMT |
| Language | Japanese |
| 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 |
| Keyword(5) | |
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| 1st Author's Name | Shigenori Takano |
| 1st Author's Affiliation | Aoyama Gakuin University (Aoyama Gakuin Univ.) |
| 2nd Author's Name | Takenori Yasuzumi |
| 2nd Author's Affiliation | Aoyama Gakuin University (Aoyama Gakuin Univ.) |
| 3rd Author's Name | Osamu Hashimoto |
| 3rd Author's Affiliation | Aoyama Gakuin University (Aoyama Gakuin Univ.) |
| 4th Author's Name | Koji Moriuchi |
| 4th Author's Affiliation | I.S.T Corporation (I.S.T Corp.) |
| 5th Author's Name | Toshifumi Sakata |
| 5th Author's Affiliation | I.S.T Corporation (I.S.T Corp.) |
| 6th Author's Name | Takeshi Ozaki |
| 6th Author's Affiliation | I.S.T Corporation (I.S.T Corp.) |
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| Speaker | Author-1 |
| Date Time | 2011-07-22 16:55:00 |
| Presentation Time | 25 minutes |
| Registration for | EST |
| Paper # | MW2011-76, OPE2011-63, EST2011-62, MWP2011-44 |
| Volume (vol) | vol.111 |
| Number (no) | no.147(MW), no.148(OPE), no.149(EST), no.150(MWP) |
| Page | pp.257-262 |
| #Pages | 6 |
| Date of Issue | 2011-07-14 (MW, OPE, EST, MWP) |
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