material property comparison based on TDR and delta L

  • Thread starter Thread starter yefj
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yefj
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Hello ,As you can see in the plot bellow I have made several TDR of different materials on one plot.
I need to deside which is the best material to use.
Also I know that based on (S21_10inch-S21_5inch)/L I find the loss per inch.
Two questions:
1.after I find the loss per inch how do I find the tan_delta and e_r of the material?
2.looking at this TDR comparison how can I see the best performing material?
Thanks.


material_comp_up.webp
 

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