| Presentation | 2017-07-21 Numerical Analysis and Evaluation of Antenna Characteristics Evaluations of High-Gain 3-Dimensional Printed Reflectarray Antenna for W-Band Millimeter-Wave Radar Applications Shunichi Futatsumori, Kazuyuki Morioka, Akiko Kohmura, Nobuhiro Sakamoto, Tomio Soga, Naruto Yonemoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report discusses the numerical analysis and evaluation of antenna characteristics of high-gain 3-dimensional (3D) printed reflectarray antenna for W-band millimeter-wave radar applications. The reflectarray antenna is advantageous in that it has a simple and flat structure. In addition, low-cost fabrication can be achieved using 3D printers. This study describes the fabrication of a 3D printed reflectarray antenna whose gain is more than 30 dBi in the W-band. First, the reflection signal phase of dielectric plates of different thickness are analyzed using finite-difference time-domain (FDTD) analysis to obtain the characteristics of the reflectarray design. Then, the eight-zone Fresnel reflectarray, in which each zone is separated by a phase difference of 45°, is analyzed and fabricated. The FDTD analysis result shows a 31.6 dBi antenna gain at 78.5 GHz. Finally, the designed reflectarray is fabricated using a commercially available 3D printer. The measurements indicate that a 30.4 dBi antenna gain is achieved, which is almost the same as the analyzed value at 78.5 GHz. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Finite-difference time-domain method / Obstacle detection / 3-dimensional printer / Helicopter / Millimeter-wave radar / W-band / Reflectarray antenna |
| Paper # | EMT2017-24,MW2017-49,OPE2017-29,EST2017-26,MWP2017-26 |
| Date of Issue | 2017-07-13 (EMT, MW, OPE, EST, MWP) |
| Conference Information | |
| Committee | MWP / OPE / EMT / MW / EST / IEE-EMT |
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| Conference Date | 2017/7/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Obihiro Chamber of Commerce and Industry |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Light wave & Electromagnetic Wave Workshop |
| Chair | Tetsuya Kawanishi(Waseda Univ.) / Kazutoshi Kato(Kyushu Univ.) / Akira Hirose(Univ. of Tokyo) / Masahiro Muraguchi(TUC) / Hideaki Kimura(NTT) / Keiji Goto(National Defense Academy) |
| Vice Chair | Naoto Yoshimoto(Chitose Inst. of Science and Tech.) / Kouki Sato(Furukawa Electric Industries) / Koichi Hirayama(Kitami Inst. of Tech.) / Yoshinori Kogami(Utsunomiya Univ.) / Hiroshi Okazaki(NTTdocomo) / Kenichi Tajima(Mitsubishi Electric) / Akimasa Hirata(Nagoya Inst. of Tech.) / Shinichiro Ohnuki(Nihon Univ.) |
| Secretary | Naoto Yoshimoto(NICT) / Kouki Sato(Chiba Inst. of Tech.) / Koichi Hirayama(NTT) / Yoshinori Kogami(Kanagawa Inst. of Tech.) / Hiroshi Okazaki(Univ. of Hyogo) / Kenichi Tajima(Tokyo Metro. Coll. of Tech) / Akimasa Hirata(Tokyo Inst. of Tech.) / Shinichiro Ohnuki(HITACHI) / (Tohoku Univ.) |
| Assistant | Kosuke Nishimura(KDDI) / Kensuke Ikeda(CRIEPI) / Takuo Tanemura(Univ. of Tokyo) / Tsuyoshi Matsuoka(Kyushu Sangyo Univ.) / Satoshi Ono(Univ. of Electro-Comm.) / Mizuki Motoyoshi(Tohoku Univ.) / Takahiro Ito(Nagoya Inst. of Tech.) / Kazuhiro Fujita(Fujitsu) / Yoshihiro Naka(KUHW) |
| Paper Information | |
| Registration To | Technical Committee on Microwave and Millimeter-wave Photonics / Technical Committee on OptoElectronics / Technical Committee on Electromagnetic Theory / Technical Committee on Microwaves / Technical Committee on Electronics Simulation Technology / Technical Meeting on Electromagnetic Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Numerical Analysis and Evaluation of Antenna Characteristics Evaluations of High-Gain 3-Dimensional Printed Reflectarray Antenna for W-Band Millimeter-Wave Radar Applications |
| Sub Title (in English) | |
| Keyword(1) | Finite-difference time-domain method |
| Keyword(2) | Obstacle detection |
| Keyword(3) | 3-dimensional printer |
| Keyword(4) | Helicopter |
| Keyword(5) | Millimeter-wave radar |
| Keyword(6) | W-band |
| Keyword(7) | Reflectarray antenna |
| 1st Author's Name | Shunichi Futatsumori |
| 1st Author's Affiliation | Electronic Navigation Research Institute(ENRI) |
| 2nd Author's Name | Kazuyuki Morioka |
| 2nd Author's Affiliation | Electronic Navigation Research Institute(ENRI) |
| 3rd Author's Name | Akiko Kohmura |
| 3rd Author's Affiliation | Electronic Navigation Research Institute(ENRI) |
| 4th Author's Name | Nobuhiro Sakamoto |
| 4th Author's Affiliation | Electronic Navigation Research Institute(ENRI) |
| 5th Author's Name | Tomio Soga |
| 5th Author's Affiliation | Electronic Navigation Research Institute(ENRI) |
| 6th Author's Name | Naruto Yonemoto |
| 6th Author's Affiliation | Electronic Navigation Research Institute(ENRI) |
| Date | 2017-07-21 |
| Paper # | EMT2017-24,MW2017-49,OPE2017-29,EST2017-26,MWP2017-26 |
| Volume (vol) | vol.117 |
| Number (no) | EMT-139,MW-140,OPE-141,EST-142,MWP-143 |
| Page | pp.pp.95-100(EMT), pp.95-100(MW), pp.95-100(OPE), pp.95-100(EST), pp.95-100(MWP), |
| #Pages | 6 |
| Date of Issue | 2017-07-13 (EMT, MW, OPE, EST, MWP) |