How to calculate Confinement loss ?

23 May 2020 1 8K Report

I am looking for the calculation of CL in comsol software . How it can calculate and is it have negative values

When we calculate the imaginary part of the effective mode index, generally it have negative values but in most of the paper it have very small positive value , as per the formula it should be negative.

Thankyou

Md. Ferdous Ahammed

Use this expression abs(imag(ewfd.neff))*4*pi*frequency/c_const

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