| Presentation | 2014-07-17 A Study of Gain Calculation for Antennas in a Lossy Medium Takuichi HIRANO, Jiro HIROKAWA, Makoto ANDO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Propagation characteristic in a lossy media need to be considered in some applications such as ultra wideband (UWB) radar for human body and ground. Antenna gain in a lossy medium is considered in this report. Friis transmission equation is extended and re-formulated to treat a lossy medium. Antenna gain calculation method using near-field is proposed and demonstrated by numerical simulation for a half-wavelength dipole antenna. Antenna gain calculation in a lossy medium was confirmed by simulation. It was found that antenna gain degrades in a lossy medium due to the coupling between near field and the lossy medium. The validity of Friis transmission equation in a lossy medium was confirmed by numerical simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Lossy Medium / Friis Transmission Equation / Gain / Half-wavelength Dipole |
| Paper # | MW2014-68,OPE2014-37,EST2014-29,MWP2014-26 |
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| Conference Information | |
| Committee | MWP |
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| Conference Date | 2014/7/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Microwave and Millimeter-wave Photonics (MWP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study of Gain Calculation for Antennas in a Lossy Medium |
| Sub Title (in English) | |
| Keyword(1) | Lossy Medium |
| Keyword(2) | Friis Transmission Equation |
| Keyword(3) | Gain |
| Keyword(4) | Half-wavelength Dipole |
| 1st Author's Name | Takuichi HIRANO |
| 1st Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology() |
| 2nd Author's Name | Jiro HIROKAWA |
| 2nd Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology |
| 3rd Author's Name | Makoto ANDO |
| 3rd Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology |
| Date | 2014-07-17 |
| Paper # | MW2014-68,OPE2014-37,EST2014-29,MWP2014-26 |
| Volume (vol) | vol.114 |
| Number (no) | 144 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |