“Study the Comparison Between Un-Bended and Bended Broadband Parallel Coupled Microstrip Bandpass Filters Under Certain Angle”. Journal of Engineering and Sustainable Development 15, no. 1 (March 1, 2011): 147–163. Accessed May 18, 2024. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1358.