出版社：Society for Microwave Technique, Technologies and Systems, Serbia and Montenegro IEEE MTT-S Chapter
摘要：Based on Huygens-Kirchhof f's theory and thin lens phase change formulation, new closed f orm expressions have been derived for the radiation field of an elliptical Gaussian beam transmitted through a thin lens. For a special case of paraxial approximation, the new expressions reduce to well known q-parameter results if applied separately to the x- and y- Gaussian field expressions. As an example of using presented theory the condition to convert elliptical to quazi-circular Gaussian beam is derived
