EM Simulation of Automotive Radar Mounted in Vehicle Bumper

Trends in automotive safety are pushing radar systems to higher levels of accuracy and reliable target identification for blind spot detection and collision prevention assistance.  Consequentially, engineers need to better understand how mounting brackets, fascia, paint color, and bumper assemblies affect the far field radiation patterns of 24 GHz and 77 GHz automotive radar systems. 

This paper outlines the advantages of FDTD EM simulation for analyzing antenna-in-system designs that include both the antenna package and the automobile body features surrounding the device. An XFdtd simulation of a radar mounted in the rear bumper of a sedan provides the framework for the discussion.

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