This paper describes how to compute inductance and resistance of any s
imple loop located near a conductive plane. The software used, InCa, h
as been presented in earlier papers. The image method is first used to
take the ground plane into account. This modeling assumes infinite gr
ound plane dimensions and conductivity. Results are compared to those
of a 3D finite element software using specific shell elements. Effect
of a finite conductivity is then analysed, using this 3D finite elemen
t tool with an impedance boundary condition. Finally, the ground plane
is considered as a closed loop of finite dimensions and conductivity.
Results are compared to measurements, and the geometrical ground plan
e characteristics influence on loop inductance is studied.