Yatongchai, A., Khamsalee, P. and Wongsan, R. 2023. EFFICIENCY IMPROVEMENT FOR ELECTRONICALLY STEERED DUAL-BEAM ANTENNA BY USING METAMATERIAL BASED RADOME. Suranaree Journal of Science and Technology. 30, 4 (Oct. 2023), 010249(1–16). DOI:https://doi.org/10.55766/sujst-2023-04-e0862.