Pelluri, Sambaiah, Anmol Jain, and M. Kartikeyan. “Novel Dual Band SIW Filter Using Quad Mode Cavity”. Defence Science Journal 69, no. 5 (September 17, 2019): 453-457. Accessed August 8, 2020. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/14950.