KUMAR, R.; VERMA, P. K.; KARTIKEYAN, M. A Wide Beam Printed Quadrifilar Helix based Circularly Polarised Radiating Element for Electronically Steered Antenna. Defence Science Journal, [S. l.], v. 71, n. 1, p. 66–70, 2021. DOI: 10.14429/dsj.71.16100. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/16100. Acesso em: 15 jun. 2025.