CLOSED-FORM MODEL OF SHUNT CAPACITANCE OF MICROSTRIP STEP DISCONTINUITY

摘要

The available closed-form expression to compute the step shunt capacitance (C_p) of the step discontinuity in microstrip line is valid for very limited range of parameters. Based on the proposal of Hoffman we report a closed-form model for C_p having maximum deviation 11% and average deviation 4.66% for 2.3 ≤ ε_r ≤ 15.lagainst numerical results of the integral equation method.