Dear Comsol users,
I am struggling to use material properties in global expressions. I am working with the RF module and using the Electromagnetic Waves/Scattered harmonic propagation application mode. I have defined some frequency dependent material parameters, e.g., relative permittivity. I can use these materials for my subdomains just fine. However, when I try to define global expressions making use of these material parameters I get errors. How should this be done correctly? From the manual I understand that mat1_epsilonr should refer to the relative permittivity of material 1 in my simulation (epsilonr is equal to a frequency dependent function that I have defined in the materials library). If I specify an expression equal to this I just get an error. Any help would be highly appreciated!
Klas
I am struggling to use material properties in global expressions. I am working with the RF module and using the Electromagnetic Waves/Scattered harmonic propagation application mode. I have defined some frequency dependent material parameters, e.g., relative permittivity. I can use these materials for my subdomains just fine. However, when I try to define global expressions making use of these material parameters I get errors. How should this be done correctly? From the manual I understand that mat1_epsilonr should refer to the relative permittivity of material 1 in my simulation (epsilonr is equal to a frequency dependent function that I have defined in the materials library). If I specify an expression equal to this I just get an error. Any help would be highly appreciated!
Klas