AHIRWAR, S.; RAMAKRISHNA, D.; PANDHARIPANDE, V. M. Design and Development of a Compact Rat-Race Coupler. Advanced Electromagnetics, [S. l.], v. 8, n. 3, p. 36–42, 2019. DOI: 10.7716/aem.v8i3.1047. Disponível em: http://aemjournal.metaconferences.org/index.php/AEM/article/view/1047. Acesso em: 18 apr. 2025.