TLM Simulation of RF Emissions and Confirmation of Results through Testing

The Transmission-Line Matrix (TLM) method has been developed for the EMC analysis of circuits and equipment packaging [1-4]. TLM is usually formulated in the time-domain, enabling transient phenomena such as lightning, EMP and ESD to be analyzed. In addition, equivalent compact models allow detailed features such as apertures and wires to be modeled in a computationally efficient manner when dealing with real-world structures. Recently the TLM technique has been enhanced to enable complex circuits to be replaced with equivalent radiating sources for the simplicity of the analysis. In this paper, we used TLM to evaluate RF emissions from a simple circuit being placed in different configurations. The resulting data was compared with test results.