Effect of the size of the antenna on measurements distribution in reverberation chamber

Abstract

This paper introduces a new perception in the analysis of distribution functions of a rectangular component of the electric field (ER) and the power received (P) in an overmoded reverberation chamber (RC). High power goodness of fit (GOF) tests modify the determination of the lowest frequency from which the ideal underlying theoretical distributions can be associated with measurements. For the electric field, a Weibull distribution is proposed to model ER in an overmoded RC, instead of the Rayleigh distribution hypothesis which is rejected by statistical tests. Furthermore, Weibull distribution provides better agreement with standard deviation of samples. An additional experiment with a monopole-like antenna shows that the exponential distribution is not rejected if the antenna length is over λ/4. Experimental results are provided by a large number of GOF tests.