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| Presentation | 2017-11-24 11:10 Beam Scanning of Conformal Array with Arbitrary Shaped Surface Hirokazu Kobayashi, Takeru Oka (OIT), Shun-ichi Takaoka (MWF)  SANE2017-83 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we discuss radiation characteristics from conformal array with arbitrary shaped surface. In order to scan a beam of array antenna with the surface, it is necessary to calculate optical path-length from each antenna element to an aperture plane, so called 'equi-phase front', which is perpendicular to scanning beam direction. Furthermore, normal vectors and polarized direction of each element are needed. For these calculation, we propose a new algorithm which can calculate the path-length (driving phase input to each element) by employing the direction-cosine relation between the beam direction and the each element. Using this direction-cosine, the path-length can be easily and generally obtained for arbitrary shaped conformal array. On the other hand, if shape of array surface is expressed by polynomial equation, normal vector and polarized direction of element antenna can be analytically determined. Polarization loss of the element and shadowing procedure, which depend on beam direction, can also be calculated. Taking these into consideration, we show radiation characteristics of curved surface array by polynomial expression. The calculation is automatically carried out through MATLAB GUI, in which we can determine operating frequency, pitch of elements, beam direction, selection of flat or curved rectangular patch for element, its size, dielectric permittivity, and array shape by inputting polynomial coefficients. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | conformal array / polynomial curved surface / beam scanning / beam scanning / direction-cosine / array-factor / MATLAB GUI / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 321, SANE2017-83, pp. 105-110, Nov. 2017. | |
| Paper # | SANE2017-83 | |
| Date of Issue | 2017-11-16 (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 | SANE2017-83 |
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| Conference Information | |
| Committee | SANE |
| Conference Date | 2017-11-23 - 2017-11-24 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Malaysia (Borneo Island) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | ICSANE2017 |
| Paper Information | |
| Registration To | SANE |
| Conference Code | 2017-11-SANE |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Beam Scanning of Conformal Array with Arbitrary Shaped Surface |
| Sub Title (in English) | |
| Keyword(1) | conformal array |
| Keyword(2) | polynomial curved surface |
| Keyword(3) | beam scanning |
| Keyword(4) | beam scanning |
| Keyword(5) | direction-cosine |
| Keyword(6) | array-factor |
| Keyword(7) | MATLAB GUI |
| Keyword(8) | |
| 1st Author's Name | Hirokazu Kobayashi |
| 1st Author's Affiliation | Osaka Institute of Technology (OIT) |
| 2nd Author's Name | Takeru Oka |
| 2nd Author's Affiliation | Osaka Institute of Technology (OIT) |
| 3rd Author's Name | Shun-ichi Takaoka |
| 3rd Author's Affiliation | Microwave Factory (MWF) |
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| Speaker | Author-1 |
| Date Time | 2017-11-24 11:10:00 |
| Presentation Time | 20 minutes |
| Registration for | SANE |
| Paper # | SANE2017-83 |
| Volume (vol) | vol.117 |
| Number (no) | no.321 |
| Page | pp.105-110 |
| #Pages | 6 |
| Date of Issue | 2017-11-16 (SANE) |
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