An analysis of a dual gridded reflector antenna

A dual gridded reflector antenna has been analyzed taking account of multiple interactions between front and rear reflectors. The results show that the computed co-pol contour is in good agreement with the measured data. However, although the minimum C/X (co/cross pol) value in the coverage area is predicted, the C/X contour is not. The analysis of the C/X contour is a subject for further investigation.