| Presentation | 2020-07-02 Design of an electromagnetic scattering wall applying array antenna theory Yasutaka Murakami, Jerdvisanop Chakarothai, Katsumi Fujii, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | 5G wireless communications use electromagnetic (EM) waves in 28 GHz band. High-directivity(gain) antennas are actually used in this frequency band and EM waves radiated from the antennas are hence reflected in a specular direction by room walls. If there are obstructions in between the transmitting and receiving antennas inside the room, wireless communication quality will be deteriorated since neither direct wave nor reflected wave reaches the receiver. We have been proposed an EM scattering wall realizing the wide scattering pattern for improvement of wireless communication quality. In this paper, a metamaterial (MTM) is used to make EM scattering wall thin. The design of the MTM and the pattern of EM scattering wall are calculated using an equivalent circuit and array antenna theory, respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Array antenna theory / Electronic scattering wall / 5G wireless communications / Metamaterial |
| Paper # | EMCJ2020-13 |
| Date of Issue | 2020-06-25 (EMCJ) |
| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2020/7/2(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Young Scientist Meeting |
| Chair | Kensei Oh(Nagoya Inst. of Tech.) |
| Vice Chair | Atsuhiro Nishikata(Tokyo Inst. of Tech.) |
| Secretary | Atsuhiro Nishikata(Denso) |
| Assistant | Nami Sasaki(Seiwa Electric MFG) / Hiroyoshi Shida(Tokin EMC Engineering) / Sho Muroga(Akita Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Compatibility |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of an electromagnetic scattering wall applying array antenna theory |
| Sub Title (in English) | Reduction of the thickness with metamaterial structures |
| Keyword(1) | Array antenna theory |
| Keyword(2) | Electronic scattering wall |
| Keyword(3) | 5G wireless communications |
| Keyword(4) | Metamaterial |
| 1st Author's Name | Yasutaka Murakami |
| 1st Author's Affiliation | National Institute of Information and Communication Technology(NICT) |
| 2nd Author's Name | Jerdvisanop Chakarothai |
| 2nd Author's Affiliation | National Institute of Information and Communication Technology(NICT) |
| 3rd Author's Name | Katsumi Fujii |
| 3rd Author's Affiliation | National Institute of Information and Communication Technology(NICT) |
| Date | 2020-07-02 |
| Paper # | EMCJ2020-13 |
| Volume (vol) | vol.120 |
| Number (no) | EMCJ-83 |
| Page | pp.pp.13-17(EMCJ), |
| #Pages | 5 |
| Date of Issue | 2020-06-25 (EMCJ) |