A microstrip tunable negative refractive index metamaterial and phase shifter
A microstrip tunable negative refractive index metamaterial and phase shifter
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DOI：
10.1063/1.3025303
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发表时间：
2008-11
影响因子：
4
通讯作者：
P. He;Jinsheng Gao;C. T. Marinis;P. Parimi;C. Vittoria;V. Harris
中科院分区：
文献类型：
--
作者：
P. He;Jinsheng Gao;C. T. Marinis;P. Parimi;C. Vittoria;V. Harris
设计并制作了一种应用于射频集成电路的可调谐负折射率超材料和微型移相器。超材料由等离子铜线和钇铁石榴石板组成，在传输带的中心具有5dB的低插入损耗。钇铁石榴石材料能够在7.0 ~ 11.0GHz的动态频带内实现负折射率的磁场调谐。在9.0GHz处，通过改变偏置场在3.8 ~ 4.6kOe范围内的变化，可以实现45°的连续调谐。
A tunable negative refractive index metamaterial and miniature phase shifter have been designed and fabricated in a microstrip configuration for applications in radio frequency integrated circuits. The metamaterial consists of plasmonic copper wires and yttrium iron garnet slabs having a low insertion loss of 5dB at the center of the transmission band. The yttrium iron garnet material enables the magnetic field tuning of the negative refractive index in a dynamic frequency band from 7.0to11.0GHz. The insertion phase can be tuned by 45° continuously by varying the bias field from 3.8to4.6kOe at 9.0GHz.