Comparison of Experimental Measurements of Current Distribution in a Flat Conductor With Simulated Results From the Partial Inductance Method

The current distribution in a stripline is calculated by using a partial inductance formulation to produce a circuit model that is evaluated with the SPICE program. The program also simulates the signals produced in a recently invented magnetic current probe. Measurements using the current probe have been made over a wide range of frequencies and compared to the calculations. Agreement is achieved within the measurement accuracy. This technique can be used directly to find current distributions with pulse excitations.