N. N. . Mod Arsad, “Design and Fabricate of 3D Printed X-Band Sample Size Based Polyethylene Terephthalate Glycol (PETG) Rectangular Waveguide”, IJIE, vol. 17, no. 6, pp. 224–234, Dec. 2025, Accessed: Apr. 08, 2026. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/21946