Tailoring Antenna Focal Plane Characteristics for a Compact Free-Space Microwave Complex Dielectric Permittivity Measurement Setup. - Jayaram Kizhekke Pakkathillam; Balamurugan T. Sivaprakasam; Jayaprakash Poojali; C. V. Krishnamurthy; Kavitha Arunachalam (IEEE Trans. Instrum. Meas., 2021)