| Presentation | 2017-11-24 Beam Scanning of Conformal Array with Arbitrary Shaped Surface Hirokazu Kobayashi, Takeru Oka, Shun-ichi Takaoka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | conformal arraypolynomial curved surfacebeam scanningbeam scanningdirection-cosinearray-factorMATLAB GUI |
| Paper # | SANE2017-83 |
| Date of Issue | 2017-11-16 (SANE) |
| Conference Information | |
| Committee | SANE |
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| Conference Date | 2017/11/23(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Malaysia (Borneo Island) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | ICSANE2017 |
| Chair | Sonosuke Fukushima(ENRI) |
| Vice Chair | Toshifumi Moriyama(Nagasaki Univ.) / Akitsugu Nadai(NICT) |
| Secretary | Toshifumi Moriyama(Mitsubishi Electric) / Akitsugu Nadai(ENRI) |
| Assistant | Manabu Akita(Univ. of Electro-Comm.) / Ryo Natsuaki(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Space, Aeronautical and Navigational Electronics |
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| Language | ENG |
| 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 arraypolynomial curved surfacebeam scanningbeam scanningdirection-cosinearray-factorMATLAB GUI |
| 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) |
| Date | 2017-11-24 |
| Paper # | SANE2017-83 |
| Volume (vol) | vol.117 |
| Number (no) | SANE-321 |
| Page | pp.pp.105-110(SANE), |
| #Pages | 6 |
| Date of Issue | 2017-11-16 (SANE) |