1GHz裂环谐振腔的设计和制作
DESIGN AND MANUFACTURE OF 1GHz SPLIT RING RESONATOR
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摘要: 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。
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Abstract: In this paper, relationship between the Q value and the resonant frequency is derived by means of equivalent circuit method. The parameters are obtained by taking the cavity cylinder as a helical circuit. A series of curves for optimum design is plotted.In our experiment, a high Q value of 900 to 1000 in the frequency range of 1 to 1.4 GHz is easily obtained, the resonator has the merits of small dimension, wide frequency range and simplicity in construction. -
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