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| Presentation | 2008-01-23 14:50 A Simulation Study of Obtaining High Gain Edge of Coverage on a Class of 100 Multi Beam Antenna Hiroyuki Ohmine, Takahiro Inoue (MELCO)  AP2007-127 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A simulation study of obtaining high gain edge of coverage on a class of 100 multi beam antenna, which has many frequency re-use is described. In order to have much isolation between beams, it is necessary not only to make sidelobe low, but also to enlarge distance of same frequency re-use beams, consequently this results in constrains of decreasing EOC gain. We propose design method to obtain high isolations of re-use beams, even distance of re-use beams is close, for cases that the position of the peak of a beam and null of another re-use frequency beam to be coincident. This means that beam orthogonal property are maintained in this condition. In using this beam layout, a lot of beams are arranged with dense beams. As a consequent of this beam layout, it makes cross over level high, which also obtains high gain in service area. Several simulation results of multi beam design with large deployable reflector around 20m are indicated in this paper as for examples, and C/I improvement results are described by forcing constraints of number of beam at the same time. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Multibeam antenna / Large deployable reflector / Pointing Error / High gain / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 431, AP2007-127, pp. 27-32, Jan. 2008. | |
| Paper # | AP2007-127 | |
| Date of Issue | 2008-01-16 (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 | AP2007-127 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2008-01-23 - 2008-01-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tyeruru.(Naha) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | etc. |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2008-01-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Simulation Study of Obtaining High Gain Edge of Coverage on a Class of 100 Multi Beam Antenna |
| Sub Title (in English) | |
| Keyword(1) | Multibeam antenna |
| Keyword(2) | Large deployable reflector |
| Keyword(3) | Pointing Error |
| Keyword(4) | High gain |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Hiroyuki Ohmine |
| 1st Author's Affiliation | Mitsubishi Electric Corp. (MELCO) |
| 2nd Author's Name | Takahiro Inoue |
| 2nd Author's Affiliation | Mitsubishi Electric Corp. (MELCO) |
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| Speaker | Author-1 |
| Date Time | 2008-01-23 14:50:00 |
| Presentation Time | 20 minutes |
| Registration for | AP |
| Paper # | AP2007-127 |
| Volume (vol) | vol.107 |
| Number (no) | no.431 |
| Page | pp.27-32 |
| #Pages | 6 |
| Date of Issue | 2008-01-16 (AP) |
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