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. Index Terms--Circuit models, current distribution, magnetic probes.