Kudpik, R., and R. Wongsan. “EFFICIENCY IMPROVEMENT FOR QUARTER-WAVELENGTH GROUND-PLANE MONOPOLE ANTENNA BY USING COAXIAL-LOOP WIRE MEDIUM (CLWM)”. Suranaree Journal of Science and Technology, vol. 28, no. 2, Aug. 2026, pp. 010040(1-10), https://ph04.tci-thaijo.org/index.php/SUJST/article/view/14886.