| A Photonic Bandgap Filter Using Metallic Hilbert Curves |
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| 作者姓名： | 李宏强 魏泽勇 陈鸿 张治文 |
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| 作者单位： | DepartmentofPhysics,TongjiUniversity,Shanghai200092 |
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| 摘 要： | We theoretically suggest that a metallic plate with Hilbert curves can possesses multiple resonances in a linear scale, leading to multiple stop bands and pass bands for electromagnetic waves over a wide frequency range.The forward transmission from a line source nearby a small plate covered by four cells with Hilbert curves is checked by a probe at the far field, the results agree well with the multiple resonance frequencies calculated by the plane wave incidence under a periodic boundary condition, the return loss spectra show that radiations of a line antenna working at 4.5 GHz can be greatly enhanced, which results from the interaction of the antenna and the subwavelength metallic plate. This kind of metallic pattern is very practical in multi-frequency functioned wave devices with sub-wavelength sizes.
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| 关 键 词： | 光子晶体 金属希尔伯特曲率 能带隙滤波器 线性共振 |
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