Single‐ and Double‐Stub Impedance Matching
Single‐ and Double‐Stub Impedance Matching
复制标题
单截线和双截线阻抗匹配
DOI：
10.1063/1.1707478
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发表时间：
1944
影响因子：
3.2
通讯作者：
J. Eisenstein
中科院分区：
文献类型：
--
作者：
A. H. Wing;J. Eisenstein
描述了传输线馈线上的单短截线和双短截线阻抗匹配。对于任何负载阻抗或任何观察到的驻波电压分布，导出了确定单个匹配短截线的位置和长度的公式，忽略了匹配部分的损耗。规定了短截线的最小长度和负载与短截线之间的最小距离的条件。对于双短截线布置，推导了任意荷载和短截线间距组合下的短截线长度和间距表达式。短截线之间具有任何固定距离的双短截线调谐器无法匹配馈线的所有负载，并且限制是指定的。讨论了双抽头调谐器在馈线上的最佳位置。说明了一种用圆图计算短截线长度和位置的图解方法。辅助圆轨迹也可指示adm.的范围，从而便于用图形确定双短截线调谐器的短截线长度。
Single‐ and double‐stub impedance matching on transmission‐line feeders are described. Formulae determining the position and the length of a single matching stub for any load impedance or any observed standing‐wave voltage distribution are derived, neglecting losses in the matching sections. Conditions for minimum length of stub and minimum distance between load and stub are specified. For the double‐stub arrangement, expressions for the lengths of and distance between stubs are derived for any possible combination of load and distance between stubs. A double‐stub tuner with any fixed distance between stubs cannot match all loads to the feeder, and the limits are specified. The optimum location on the feeder of the double‐stub tuner is discussed. A graphical method employing a circle diagram for computing the lengths and position of the stubs is explained. The graphical determination of the stub lengths of the double‐stub tuner is facilitated by auxiliary circular loci which also indicate the range of adm...