Sivakumar R, Azemi SN, Lee YS, Kok YY, Ping JS. 3-D Printed Antennas with Dielectric Lens for Free-Space Constitutive Parameters Measurement. Semarak Int. J. Electr. Syst. Eng. [Internet]. 2024 Mar. 30 [cited 2025 May 15];1(1):1-25. Available from: https://semarakilmu.my/index.php/sijese/article/view/463