BHARATH KUMAR, K.; SHANMUGANANTHAM, T. Investigation of SIW directional coupler for 60ghz mm-wave applications. International Journal of Engineering and Technology, [S. l.], v. 7, n. 1.8, p. 1–5, 2018. DOI: 10.14419/ijet.v7i1.8.9440. Disponível em: https://sciencepubco.com/index.php/IJET/article/view/9440.. Acesso em: 16 mar. 2025.