| Presentation | 2000/7/20 Equivalent Weight Vector and Array Factor Formulation for Espar Antennas Takashi OHIRA, Koichi GYODA, Akira AKIYAMA, Kehu YANG, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The espar antenna has strong potential to be a breakthrough for developing adaptive antennas aboard portable wireless terminals. It offers much lower fabrication cost and dc power dissipation, as well as higher dynamic range against arriving interferences than digital-beamforming antennas do. This paper presents the basic configuration and features of the espar antenna compared with other beamforming schemes. Its directivity is formulated by introducing an"equivalent"weight vector and a steering vector. The relationship between the equivalent weight vector and the variable reactances is analytically clarified in the formulation. The formulation is very important in understanding the principle of adaptive beamforming of espar antennas. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | adaptive antenna / steering vector / weight vector / array factor / varactor / espar antenna / varactor |
| Paper # | A・P2000-44,SAT2000-41,MW2000-44 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2000/7/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Equivalent Weight Vector and Array Factor Formulation for Espar Antennas |
| Sub Title (in English) | |
| Keyword(1) | adaptive antenna |
| Keyword(2) | steering vector |
| Keyword(3) | weight vector |
| Keyword(4) | array factor |
| Keyword(5) | varactor |
| Keyword(6) | espar antenna |
| Keyword(7) | varactor |
| 1st Author's Name | Takashi OHIRA |
| 1st Author's Affiliation | ATR Adaptive Communication Research Laboratories() |
| 2nd Author's Name | Koichi GYODA |
| 2nd Author's Affiliation | ATR Adaptive Communication Research Laboratories |
| 3rd Author's Name | Akira AKIYAMA |
| 3rd Author's Affiliation | ATR Adaptive Communication Research Laboratories |
| 4th Author's Name | Kehu YANG |
| 4th Author's Affiliation | ATR Adaptive Communication Research Laboratories |
| Date | 2000/7/20 |
| Paper # | A・P2000-44,SAT2000-41,MW2000-44 |
| Volume (vol) | vol.100 |
| Number (no) | 221 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |