Deshpande, A. Y., Bhong, M., Raj, A. P., Thakare, Y. B. and Ray, K. P. (2026) “A Comprehensive Review on Frequency Reconfigurable Antennas for 4G, 5G and sub-6 GHz Systems with Emerging Techniques”, Journal of Electronics and Electrical Engineering. Singapore, 5(1), pp. 144–180. doi: 10.37256/jeee.5120269368.