1GHz裂環(huán)諧振腔的設(shè)計和制作
DESIGN AND MANUFACTURE OF 1GHz SPLIT RING RESONATOR
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摘要: 本文用等效電路的方法,推導(dǎo)了腔的諧振頻率及Q值表達式,并用螺線管的磁場等效腔的磁場,進一步得出了Q值與腔的尺寸、屏蔽殼及耦合環(huán)之間的關(guān)系。用計算機作出了關(guān)系曲線,從曲線可以得到腔的最佳設(shè)計方案。 在1到1.4GHz頻率范圍內(nèi)的實驗表明:Q值容易達到900～1000。這種腔具有結(jié)構(gòu)簡單、體積小、調(diào)諧范圍寬及Q值高等優(yōu)點。
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關(guān)鍵詞:
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. -
M. Giordano. F. Momo and A. Sotgin. J. Phys. E: Scientific Instrumentsm 16(1983), 774.[2]W.N. Hardy and L. A. Whitehead, Rev. Sci. Instrum., 52(1981), 213.[3]P. Momo, A. Sotgin and R. Zonta, J. Phys. E: Scientific Instruments, 16(1983), 43.[4]E. M. Purcell著,南開大學(xué)物理系譯,伯克利物理教程,第二卷,科學(xué)出版社,1979年,第254頁.[5]M. Wind and H. Rapart著,吳培享等譯,微波測量方法,上?？茖W(xué)出版社,1964,第230頁. -
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