Sivakumar, R. ., S. N. . Azemi, Y. S. Lee, Y. Y. Kok, and . J. S. Ping. “3-D Printed Antennas With Dielectric Lens for Free-Space Constitutive Parameters Measurement”. Semarak International Journal of Electronic System Engineering, vol. 1, no. 1, Apr. 2024, pp. 1-25, doi:10.37934/sijese.1.1.125.