Automation and Control is one of the leading providers of industrial Ethernet at bitrates up to 10 Gigabit per second. Using CST MICROWAVE STUDIO® (CST MWS) we have examined signal paths regarding signal quality, crosstalk and EMC related issues and have identified influences of vias, stackup and other parameters affecting the quality of our high speed interfaces. As the measurement of impedance of critical pins in the power delivery system is challenging, a simulation allows us to evaluate the position dependent information. Furthermore, we also succeeded in improving housing design in RF-matters, tagging and optimizing the “sites of crime”. Using the capabilities of a simulation helps us to fit the “first shot” layout into a demanding environment and also to optimize an existing layout to ensure performance at growing requirements to the designs. Additionally, it gives us a cost and time effective possibility to answer the “what if” questions and visualize the points of interest helps to generate reliable constrains.
Winfried Krämer, Hirschmann Automation and Control GmbH Hirschmann