Pradeep Kumar Verma, Anuja Singh, Lalit Kumar, Pankaj Vishwakarma 2026. Challenges, Design, and Innovations in mmWave Antennas for 6G and beyond Wireless Systems: A Survey. International Journal of Research & Technology. 14, S1 (Mar. 2026), 880–887. DOI:https://doi.org/10.64882/ijrt.v14.iS1.1123.