High Q or High Effective Permittivity Artificial Dielectric Resonator in a Waveguide
High Q or High Effective Permittivity Artificial Dielectric Resonator in a Waveguide
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波导中的高 Q 值或高效介电常数人工介电谐振器
DOI：
10.1093/ietele/e88-c.7.1412
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
A. Sanada
中科院分区：
文献类型：
--
作者：
H. Kubo;T. Mukai;A. Sanada
提出了一种用于波导中人工介质谐振器的高Q或高有效介电常数的新型条形结构。通过改变组成人工电介质的条带排列，讨论了质量因子和有效介电常数。在波导中从两侧向中间集中条形光条，使得空载q值增大，由于材料介电损耗的减小，空载q值增大到几千。数字间带的排列使得有效介电常数非常高。条形结构谐振器的有效介电常数大于800，卸载Q大于1000。此外，该谐振器具有良好的杂散特性，在多个谐波范围内没有不必要的谐振模式。
New strip arrangements for high Q or high effective permittivity are proposed for artificial dielectric resonators in a waveguide. The quality factor and the effective permittivity are discussed by changing strip arrangement composing the artificial dielectric. Concentrating strips from both sides to the middle in the waveguide leads to increase of unloaded Q. The value becomes high to several thousands by decreasing dielectric loss of the material. Interdigital strip arrangement makes the effective permittivity very high. A resonator of the strip arrangement has effective permittivity over 800 and unloaded Q over 1000. Moreover the resonator exhibits a good spurious characteristic with no unnecessary resonant mode throughout several harmonics range.