Cancan Hu, N.P.Yadav1, and Xuefeng Liu. “Dumbbell Shaped Defected Ground Structure High Gain Antenna for Dual Band Application”. International Journal of Advances in Microwave Technology 3, no. 1 (January 31, 2018): 146-151. Accessed September 19, 2024. https://ijamt.com/index.php/ijamt/article/view/66.