A. Ghaznavi Jahromi and  F. Mohajeri,  Design and Fabrication of a Miniaturized Microstrip Antenna Loaded by DNG Metamaterial.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2014, vol. 89(5). 821 - 825
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/9998890.