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| Presentation | 2009-07-10 16:15 Design Method of Spherical Reflector Antennas with a Correcting Subreflector for Spherical Aberration Shuji Urasaki (Hiroshima Institute of Technology)  AP2009-76 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper describes design method of spherical reflector antennas with the subreflector between the main spherical reflector and the primary horn in order to correct for spherical aberration. Design parameters are three, namely,an aperture angle of the main reflector, a diameter of the subreflector and a position of the horn . If coordinates of the subreflector are defined doubly for some combination of the three parameters, the subreflector cannot be formed. Analytical condition to form the subreflector is deduced using the three desin parameters. In numerical results, a subreflector diameter have much influence rather than a horn position for forming condition, the minimum diameter of the forming subreflector exist accordin as an aperture angle of the main reflector. An amplitude distribution in the main reflector is presented for the three design parameters and the illuminated radiation patterns at the subreflector. If the diameter of the subreflector is selected for the minimum value describe above in order to minimize aperture blocking of the subreflector, an extreemly inverse-taped amplitude distribution which have deteriorate radiatin characteristics is produced. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | reflector antenna / aperture antenna / / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 117, AP2009-76, pp. 189-194, July 2009. | |
| Paper # | AP2009-76 | |
| Date of Issue | 2009-07-01 (AP) | |
| 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 | AP2009-76 |
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| Conference Information | |
| Committee | AP SAT |
| Conference Date | 2009-07-08 - 2009-07-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Otaru city, Hokkaido |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | AP |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2009-07-AP-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design Method of Spherical Reflector Antennas with a Correcting Subreflector for Spherical Aberration |
| Sub Title (in English) | |
| Keyword(1) | reflector antenna |
| Keyword(2) | aperture antenna |
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| 1st Author's Name | Shuji Urasaki |
| 1st Author's Affiliation | Hiroshima Institute of Technology (Hiroshima Institute of Technology) |
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| Speaker | Author-1 |
| Date Time | 2009-07-10 16:15:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2009-76 |
| Volume (vol) | vol.109 |
| Number (no) | no.117 |
| Page | pp.189-194 |
| #Pages | 6 |
| Date of Issue | 2009-07-01 (AP) |
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