Lertwiriyaprapa, Titipong, Chuwong Phongcharoenpanich, and Monai Krairiksh. “Theoretical Investigations of Radiation and Impedance Characteristics of a Probe Excited Rectangular Cavity-Backed Slot Antenna”. Science & Technology Asia 5, no. 3 (November 4, 2015): 49–55. Accessed May 3, 2024. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/41893.