Analysis of a narrow slot backed by a rectangular cavity using FEKO

A numerical study of a thin-wire probe inside a slotted rectangular cavity is presented in this work. The results obtained with the 3-D full-wave method of moments based code FEKO is compared to the computations in Ramani, V (2004). The motivation for this study stems from the wide usage of high power RF excitations in electronic systems. Electromagnetic coupling and interference [Christopoulos C. et al., 2001] in electronic devices (computers, sensors, control and communication devices, etc.) is of increasing concern due to the presence of both intentional and un-intentional internal/external electromagnetic sources. After the preliminary comparison of results we introduce a finite conductivity into the walls of the cavity to resemble more practical problems for simulations with FEKO.