Sun Haibin, Wen Guangjun, Huang Yongjun, Li Jian, Zhu Weiren, Si Li-Ming
Appl Opt. 2013 Nov 1;52(31):7517-22. doi: 10.1364/AO.52.007517.
The couplings between single/dual split ring resonators (SRRs) and their mirror images in a rectangular waveguide are systematically investigated through theoretical analysis and experimental measurements. Such couplings can be manipulated mechanically by rotating the SRRs along a dielectric rod and/or shifting the SRRs up/down along the sidewall of the rectangular waveguide, resulting in shifts of the resonant frequencies and modulations of the resonant magnitudes. These controllable properties of SRRs pave the routers toward designing tunable band notch filters. In particular, it is experimentally demonstrated that the designed filters possess 7.5% tuning range in the X-band.
通过理论分析和实验测量，系统地研究了矩形波导中单/双分裂环谐振器（SRR）与其镜像之间的耦合。这种耦合可以通过沿介质棒旋转SRR和/或沿矩形波导侧壁上下移动SRR来进行机械控制，从而导致谐振频率的偏移和谐振幅度的调制。SRR的这些可控特性为设计可调谐带阻滤波器铺平了道路。特别是，实验证明所设计的滤波器在X波段具有7.5%的调谐范围。
