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How to calculate the electrical length of a transmission line by HFSS simulation

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发表于 2014-9-30 00:00:00 | 显示全部楼层 |阅读模式
易迪拓培训微波射频和天线设计培训
e.g. a piece of waveguide with certain length. How to accurately calculate its electrical length by HFSS simulaiton?

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发表于 2014-10-9 00:00:00 | 显示全部楼层
易迪拓培训微波射频和天线设计培训
Apply two waveports, one to to the end of the waveguide, then simulate.

The phase of S21 will tell you how long the transmission line is, within one wavelength. To find out how many integer number of wavelengths there are, simply plot the electric field and count maxima.
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