@article{kumar_chaubey_srikant_2012,  title={On the design of UWB circular fractal antenna with notched-band characteristics using W-shape slot},  volume={11},  ISSN={2179-1074},  url={https://doi.org/10.1590/S2179-10742012000200001},  DOI={10.1590/S2179-10742012000200001},  number={2},  journal={Journal of Microwaves, Optoelectronics and Electromagnetic Applications},  publisher={Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo},  author={Kumar, Raj and Chaubey, Prem Narayan and Srikant, I.},  year={2012},  month={Dec},  pages={230–241} }