So i have values of L and C here. And I need to length and width. Expressions are there in the file. But i am not able to understand how they calculated. So can someone please explain me how they got length and width of L and C using that root-searching program developed in this paper?
for a generic lossless transmission line the characteristic impedance Zc=sqrt(L/C) and the phase velocity Vp=1/sqrt(LC).
L and C are per unit length,so C=1/(Zc.Vp) which is (5) in the paper
and L=Zc/Vp which -for microstrip line- lead to that equation in the link
https://www.allaboutcircuits.com/tools/microstrip-inductance-calculator/
or (6) ,(7) in the paper , all are approximations .
it's not easy to calculate the dimensions using these equations so the program solves it numerically
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