CATR Quiet Zone Modelling and the Prediction of “Measured” Radiation Pattern Errors: Comparison using a Variety of Electromagnetic Simulation Methods

Authors: C.G. Parini, R. Dubrovka, S.F. Gregson
Publication: AMTA 2015
Copyright Owner: NSI-MI Technologies

The successful design and implementation of a compact antenna test range (CATR) is predicated upon the availability of highly accurate and precise computational electromagnetic (CEM) modelling tools. As the accuracy of these models is paramount to both the design of the CATR and the subsequent determination of the facility level uncertainty budget, this paper presents an accuracy evaluation of five different CEM simulations. We report results using methods of CATR modelling including: geometrical-optics with geometrical theory of diffraction, plane-wave spectrum, Kirchhoff-Huygens and current element, before presenting results of their use in the farfield antenna pattern measurement prediction for given CATRAUT combinations.

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