介质镜象线的阻抗匹配器
THE IMPEDANCE MATCHING ELEMENT OF DIELECTRIC IMAGE LINE
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摘要: 本文分析了介质镜象线的波阻抗与几何尺寸和频率的关系;研究了阻抗匹配的必要性和可能性;提出了一种选优的匹配器。对于阻抗比为4.7的两截介质镜象线,得到驻波系数S1.10的带宽达10.5 GHz的宽带特性。选优匹配器的性能优于用经典方法设计的匹配器。
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Abstract: In this paper the wave impedaa.ee of dielectrie image line as a function of geometry dimensions and frequency is analyzed. Both the necessity and the possihility of impedance matching are studied. An optimal matching element is put forward. Its bandwidth with VSWR1.10 can be as wide as10.5 GHz, when it is connected between two dielectrie image lines with an impedance ratio of 4.7. Its properties are obviously better than those of elassical type. -
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