| Presentation | 2020-11-25 Design and Evaluation of Radome for Unmanned Aerial Vehicle onboard Synthetic Aperture Radar Kenji Ishizuki, Josaphat T. Sri sumantyo, Cahya E. Santosa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, various unmanned aerial vehicle (UAV) and sensor were developed by increasing volume and weight capacity for Earth observation. Especially, sensor needs to install inside radome by considering structure and aerodynamics of UAV of onboard synthetic aperture radar (SAR). We also need to consider material that satisfied radio characteristics, that electromagnetic waves of transmitter and receiver could through the material with less degradation. Therefore, in designing the radome mounted on the UAV, it is necessary to design a radome with excellent aerodynamic characteristics and high radio wave transmittance. Previous radomes employed glass fiber and acrylic that radio waves could through well, however weight and difficult to fabricate radome using these materials. Hence, in this study, we designed lightweight radome with excellent durability and radio wave characteristics by applying a special material called polymaterial that has excellent radio wave transmittance, to the surface of polyurea. In this research, we held simulation of aerodynamic characteristics of the radome, designing the radome structure by considering aerodynamic characteristics, and fabricated prototype of the radome using polyurea material. The investigation of radio characteristics has been done by measuring the radome in our anechoic chamber. It was found that when the prototype radomes with coating thicknesses of 0.35mm, 0.7mm, and 1.0mm were installed, the gain decreased in the order of coating thicknesses of 0.35mm, 0.7mm, and 1.0mm. Base on this result, we will employ the radome for flight test of SAR onboard UAV. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Radome / aerodynamics / computational fluid dynamics / polymaterials / radio characteristics |
| Paper # | SANE2020-32 |
| Date of Issue | 2020-11-18 (SANE) |
| Conference Information | |
| Committee | SANE |
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| Conference Date | 2020/11/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Radar, Remote Sensing and general issues |
| Chair | Akitsugu Nadai(NICT) |
| Vice Chair | Hiroyoshi Yamada(Niigata Univ.) / Makoto Tanaka(Tokai Univ.) |
| Secretary | Hiroyoshi Yamada(Mitsubishi Electric) / Makoto Tanaka(Univ. of Tokyo) |
| Assistant | Shunichi Futatsumori(ENRI) |
| Paper Information | |
| Registration To | Technical Committee on Space, Aeronautical and Navigational Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design and Evaluation of Radome for Unmanned Aerial Vehicle onboard Synthetic Aperture Radar |
| Sub Title (in English) | |
| Keyword(1) | Radome |
| Keyword(2) | aerodynamics |
| Keyword(3) | computational fluid dynamics |
| Keyword(4) | polymaterials |
| Keyword(5) | radio characteristics |
| 1st Author's Name | Kenji Ishizuki |
| 1st Author's Affiliation | Chiba University(Chiba Univ.) |
| 2nd Author's Name | Josaphat T. Sri sumantyo |
| 2nd Author's Affiliation | Chiba University(Chiba Univ.) |
| 3rd Author's Name | Cahya E. Santosa |
| 3rd Author's Affiliation | Chiba University(Chiba Univ.) |
| Date | 2020-11-25 |
| Paper # | SANE2020-32 |
| Volume (vol) | vol.120 |
| Number (no) | SANE-250 |
| Page | pp.pp.31-36(SANE), |
| #Pages | 6 |
| Date of Issue | 2020-11-18 (SANE) |