WASET
    R. Bansal and  A. Jain and  M. Kumar and  R. S. Meena,  Design, Analysis and Modeling of Dual Band Microstrip Loop Antenna Using Defective Ground Plane.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2012, vol. 69(9). 1076 - 1080
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/17301.