DESIGN AND MANUFACTURE OF A 1GHz SPLIT RING RESONATOR

The Q value and the resonant frequency for split ring resonator are derived by the method of equivalentcircuit.The relationship between Q and dimensions of split ring resonator is obtained by taking theresonator as a solenoid.A series of curves for optimum design is plotted.In our experiments,a high Q value of 900 to 1000 in the frequency range of 1 to 1.4 GHz is easilyobtained;the resonator has the merits of small dimension,wide frequency range and simplicity inconstruction.     

1GHz裂环谐振腔的设计和制作

本文用等效电路的方法,推导了腔的谐振频率及Q值表达式,并用螺线管的磁场等效腔的磁场,进一步得出了Q值与腔的尺寸、屏蔽壳及耦合环之间的关系。用计算机作出了关系曲线,从曲线可以得到腔的最佳设计方案。 在1到1.4GHz频率范围内的实验表明:Q值容易达到900～1000。这种腔具有结构简单、体积小、调谐范围宽及Q值高等优点。