Disk-gap discontinuity in a coaxial transmission line

M. Navarro
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引用次数: 2

Abstract

Some filter realizations require a series capacitance that is difficult to implement when using coaxial cable technology. The difficulty in using this topology for a series capacitor stems from the fact that small internal radii produce small series capacitances, unless a very small gap size is used. The sensitivity of the series capacitance to errors in gap size increases with smaller gaps and makes this topology useless in this respect. To alleviate this problem a topology is proposed which consists of two additional disks added to the gap, thus providing a new parameter to adjust, the disk radius, that together with the gap size permits a better (less sensitive) method to synthesize a given series capacitance.<>
同轴传输线中的盘隙不连续
一些滤波器实现需要串联电容,这在使用同轴电缆技术时很难实现。在串联电容器中使用这种拓扑结构的困难源于这样一个事实,即小的内部半径产生小的串联电容,除非使用非常小的间隙尺寸。串联电容对间隙尺寸误差的敏感性随着间隙的减小而增加,使得这种拓扑在这方面毫无用处。为了缓解这一问题,提出了一种拓扑结构,该拓扑结构由在间隙中添加两个额外的磁盘组成,从而提供了一个新的参数来调整磁盘半径,该参数与间隙大小一起允许更好(不太敏感)的方法来合成给定的串联电容。
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