The Design of Low Frequency Chambers Using Computer Simulation Techniques with Emphasis on Automotive Chambers

Three dimensional plots of the frequency and spatial behavior of the transfer function of a reflecting floor anechoic chamber are presented to illustrate the chamber properties. Chamber measurement techniques and the information contained within the data are discussed. Frequency regions where transfer function uncertainties affect the chamber calibration are presented for various combinations of radiator and receive antenna heights and chamber reflectivity levels. A conclusion about the proper way to interpret simulation results is also presented.