T P Madhav, B, M Venkateswara Rao, K Manisahithi, D S S Sarvani, M Dharani, and S V Rami Reddy. “Compact Metamaterial Inspired Periwinkle Shaped Fractal Antenna for Multiband Applications”. International Journal of Engineering & Technology 7, no. 1.1 (December 21, 2017): 507–512. Accessed May 4, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/10157.