2012 Fiscal Year Final Research Report
Development of Ultra Small Scale, Tunable RF Circuit using Metamaterial Technology
| Project/Area Number |
22560345
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Shibaura Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Keywords | メタマテリアル / 左手系 / 共振器 / Q値 |
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| Research Abstract |
In this project, we proposed a meta-material based stub resonator utilizing negative-order resonance mode, with compact size and frequency tunability. The compact resonator sizes less than 1/3 of conventional half-wavelength stub resonators. We demonstrate that the slow group velocity of the left-handed waves enhances the unloaded-Q of the resonator by a factor of 2 or more. As a result, the loaded-Q, controlled by the left-handed reactive elements, can be arbitrarily increased without incurring significant insertion loss as in the case of conventional right-handed stub resonators. The physical mechanism of the distinct features is discussed based on measured and simulated results.
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