2021 Fiscal Year Final Research Report
Theory and Realization of Reconfigurable Antennas Based on Circularly Polarized Metamaterial Lines
| Project/Area Number |
18K04154
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 21020:Communication and network engineering-related
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| Research Institution | Hosei University |
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Principal Investigator |
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| Project Period (FY) |
2018-04-01 – 2022-03-31
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| Keywords | アンテナ / 円偏波放射 / 特性再生 |
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| Outline of Final Research Achievements |
The transmitting and receiving antennas for communication systems using a linearly polarized wave need polarization alignment (PA). On the other hand, those using a circularly polarized (CP) wave do not need the PA. Although CP antennas have such an advantage, there are little data on a CP reconfigurable antenna, which reproduces the same antenna characteristics during the beam steering. In this context, this research presents a realization of the CP reconfigurable antenna, where metaatoms are used. A systematic investigation on the radiation characteristics is performed on the basis of electromagnetics.
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| Free Research Field |
電磁波工学
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| Academic Significance and Societal Importance of the Research Achievements |
メタアトムを使用して実現した本アンテナの放射パターン，入力インピーダンス，および利得は，ビーム方向が変わってもそのつど同じものとなる．つまり，ビーム走査時に固有の特性が再現される，という特長を有する．従って，この「円偏波放射ビーム走査・特性再生可能アンテナ」は，動きの激しい移動体と基地局との通信に対して有効であり，高度情報化社会に貢献する．
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