Dr. K. Gouthami, Dr. Sakhamuri Suryanarayana. “A Novel Inter Digital Filtenna Structure With Dumb Bell Shaped and CSRR Defects in Ground for S-Band and ISM 2.4 GHz Band Applications”. Design Engineering (December 31, 2019): 13 - 26. Accessed May 19, 2024. http://thedesignengineering.com/index.php/DE/article/view/6185.