| Presentation | 2018-05-18 An estimation of secondary radiation pattern for predicting outdoor to indoor radio propagation characteristics Keita Okahashi, Tokio Taga, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A numerical method combined ray-tracing technique with geometrical optic approximation is proposed and used for estimating radio interference from outdoor cell to indoor cell. However, the geometrical optic approximation needs large computation cost due to integration of electrical field on aperture plane. In this study, a window aperture is assumed as a kind of aperture antennas, and the radiation characteristics of aperture antenna that has the electrical field distribution generated by the field arrived from outdoor space are applied as the re-radiation pattern from the window aperture. The formula of radiation pattern from a window aperture are presented for predicting outdoor to indoor radio propagation characteristics, and some experimental results of radiation characteristics from an aperture on a metal screen set in an anechoic chamber are also presented. This study investigates the usefulness of reradiated pattern for predicting outdoor to indoor radio propagation by comparing calculated results with experiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Outdoor to Indoor Propagation / Window Aperture / Aperture Antenna / Reradiated Pattern |
| Paper # | AP2018-30 |
| Date of Issue | 2018-05-10 (AP) |
| Conference Information | |
| Committee | AP |
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| Conference Date | 2018/5/17(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kumamoto Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Radio propagation, Antennas and Propagation |
| Chair | Jiro Hirokawa(Tokyo Tech.) |
| Vice Chair | Ryo Yamaguchi(SoftBank) |
| Secretary | Ryo Yamaguchi(NTT DoCoMo) |
| Assistant | Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An estimation of secondary radiation pattern for predicting outdoor to indoor radio propagation characteristics |
| Sub Title (in English) | |
| Keyword(1) | Outdoor to Indoor Propagation |
| Keyword(2) | Window Aperture |
| Keyword(3) | Aperture Antenna |
| Keyword(4) | Reradiated Pattern |
| 1st Author's Name | Keita Okahashi |
| 1st Author's Affiliation | Kwansei Gakuin University(Kwansei Gakuin Univ.) |
| 2nd Author's Name | Tokio Taga |
| 2nd Author's Affiliation | Kwansei Gakuin University(Kwansei Gakuin Univ.) |
| Date | 2018-05-18 |
| Paper # | AP2018-30 |
| Volume (vol) | vol.118 |
| Number (no) | AP-37 |
| Page | pp.pp.95-98(AP), |
| #Pages | 4 |
| Date of Issue | 2018-05-10 (AP) |