carbon9
Member level 3
Hi
We know that the characteristic impedance of a microstrip line is given as follows:
In general the metal resistivity is so small that Z0 can be taken as sqrt(L/C). But if the metal resisitivity is not that small? Then according to the equation, this resistivity should affect the Z0. Is it true?
I did simple Agilent Genesys simulations of microstrip lines to see the effect of the metal resistivity on Z0 but surprisingly it didn't affect Z0. When I increase the metal resistivity, it only increases the attenuation. Any idea and help is appreciated.
We know that the characteristic impedance of a microstrip line is given as follows:
In general the metal resistivity is so small that Z0 can be taken as sqrt(L/C). But if the metal resisitivity is not that small? Then according to the equation, this resistivity should affect the Z0. Is it true?
I did simple Agilent Genesys simulations of microstrip lines to see the effect of the metal resistivity on Z0 but surprisingly it didn't affect Z0. When I increase the metal resistivity, it only increases the attenuation. Any idea and help is appreciated.