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| Presentation | 2010-06-25 13:40 Null Beam Forming for Multiple-Beam Phased Array Antennas on GEO Satellites Toru Takahashi, Narihiro Nakamoto, Tamotsu Nishino, Toshihiko Aoki, Yoshihiko Konishi, Isamu Chiba (Mitsubishi Electric), Masanobu Yajima, Johta Awano, Ichirou Inamori (JAXA)  SANE2010-42 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Multiple access technologies have been required for intersatellite communications between low earth orbit (LEO) satellites and geostationary orbit (GEO) satellites. Multiple-beam phased array antennas are effective as transmitting and receiving antennas on GEO satellites because they can scan their beam directions electrically and establish communication links with multiple user satellites. In the multiple accesses due to multiple-beam antennas, however, insufficient isolations between individual beams lead to interferences and they cause bit error degradations. In this report, null beam forming by phased arrays is studies as the key technology to suppress the interferences by antennas. Computer simulations indicate that multiple nulls can be formed by phase-control of each antenna element and the gain reduction due to it are investigated in detail. Some experiments validate the simulations. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Multiple beam / Phased array antennas / Null beam forming / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 92, SANE2010-42, pp. 151-156, June 2010. | |
| Paper # | SANE2010-42 | |
| Date of Issue | 2010-06-17 (SANE) | |
| 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 | SANE2010-42 |
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| Conference Information | |
| Committee | SANE |
| Conference Date | 2010-06-24 - 2010-06-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tsukuba Space Center (JAXA) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Space applications symposium -Development and operation results from small satellite to ISS related systems- |
| Paper Information | |
| Registration To | SANE |
| Conference Code | 2010-06-SANE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Null Beam Forming for Multiple-Beam Phased Array Antennas on GEO Satellites |
| Sub Title (in English) | |
| Keyword(1) | Multiple beam |
| Keyword(2) | Phased array antennas |
| Keyword(3) | Null beam forming |
| Keyword(4) | |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Toru Takahashi |
| 1st Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
| 2nd Author's Name | Narihiro Nakamoto |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
| 3rd Author's Name | Tamotsu Nishino |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
| 4th Author's Name | Toshihiko Aoki |
| 4th Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
| 5th Author's Name | Yoshihiko Konishi |
| 5th Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
| 6th Author's Name | Isamu Chiba |
| 6th Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
| 7th Author's Name | Masanobu Yajima |
| 7th Author's Affiliation | Japan Aerospace Exploration Agency (JAXA) |
| 8th Author's Name | Johta Awano |
| 8th Author's Affiliation | Japan Aerospace Exploration Agency (JAXA) |
| 9th Author's Name | Ichirou Inamori |
| 9th Author's Affiliation | Japan Aerospace Exploration Agency (JAXA) |
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| Speaker | Author-1 |
| Date Time | 2010-06-25 13:40:00 |
| Presentation Time | 20 minutes |
| Registration for | SANE |
| Paper # | SANE2010-42 |
| Volume (vol) | vol.110 |
| Number (no) | no.92 |
| Page | pp.151-156 |
| #Pages | 6 |
| Date of Issue | 2010-06-17 (SANE) |
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