An assessment on the accuracy of time-domain reflectometry for measuring the characteristic impedance of transmission lines

被引:30
|
作者
Paulter, NG [1 ]
机构
[1] US Dept Commerce, Natl Inst Stand & Technol, Div Elect, Elect & Elect Engn Lab,Technol Lab, Gaithersburg, MD 20899 USA
关键词
characteristic impedance; high speed/high frequency; impedance discontinuity; time-domain reflectometry; transmission line;
D O I
10.1109/19.963214
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An assessment of time-domain reflectometry (TDR) for measuring the characteristic impedance Z(TL) of transmission lines is performed. The assessment includes the accuracy, of measuring Z(TL) as a function of TDR electrical impedance Z(O), the ability to measure impedance perturbations as a function Of Z(TL) and Z(O), and the ability to differentiate between transmission lines of similar Z(TL). The information presented herein will be especially useful for those using 50 Omega TDR systems to characterize transmission lines having characteristic impedances less than about 30 Omega.
引用
收藏
页码:1381 / 1388
页数:8
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