Defining new material

Hello, i'm supposed to use a Ferro ULF140 LTCC tape with a dielectric constant 14 and Tand=0.001 for my design, which i'll probably have to define myself in Hfss 13. Can anyone point me somewhere i can get information about equations i need for defining new materials? when i try to create new material the values i'm supposed to assing are rather complicated for my knowladge..

hi.
plz do these steps:
default material>in material tab,select add material>fill the table of values>select validate material and then ok.
Good Luck