Woo DS, Lee C-H, Kim KW, Choi H-C. An Octave Bandwidth Metamaterials-based Hexagonal Patch Antenna. ELEKTRON ELEKTROTECH [Internet]. 2015Oct.3 [cited 2024Apr.20];21(5):44-7. Available from: https://eejournal.ktu.lt/index.php/elt/article/view/13325