Finite element electric and magnetic field analysis of microstrip and planar strip PCBs
In the design of printed circuit boards, for microwave applications it is useful to know the equivalent circuital model per unit length parameters as the external inductance lambda(e) and capacitance c. In this paper a finite element (FE) analysis is performed of the electric and magnetic field in the transverse plane, for two different types of strip PCBs, the microstrip and the planar strip. It will be derived from the FE potential solutions the parameters lambda(e) and c, the velocity v of the propagation waves, the characteristic impedance Z(c) and the relative effective equivalent permittivity epsilon(ef).
printed circuit boards microwaves impedance finite element method