| z: characteristic impedance z, e: substrate permittivity
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| style="width:150px;" | Z0_CPW(e,x,y)| style="width:120px;" | EMAG Python function| style="width:250px;" | Characteristic impedance of a coplanar waveguide transmission line | style="width:250px;" | x: slot width-to-height ratio, y: center strip width-to-height ratio, e: substrate permittivity
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| eeff_CPW(e,x,y)