Hussein Yousif Al lowaizi, Amjad, and Saad Wasmi Osman Luhaib. 2022. “A Transmission Zero Position Control for 28 GHz Rectangular Waveguide Cavity Bandpass Filter”. Al-Rafidain Engineering Journal (AREJ) 27 (1):81-89. https://doi.org/10.33899/rengj.2022.132009.1140.