A Master thesis was discussed in  Department of Electrical Engineering / College of Engineering at  University of Mosul entitled " Design and Improvement of a Four-Port Diplexer for Highly Interference Rejection " Supervised By Assist. Prof. Dr. Saad Wasmi Osman Luhaib On Tuesday, September, 2, 2025. The thesis presented by, “Halah Rageh Mahmood Hameed” proposed a technique for achieving high Tx/Rx signal isolation through the cancellation of microwave interference The thesis discusses “Dual-mode microstrip BPFs based on folded resonators were designed and integrated into a four-port diplexer. Analytical modeling and HFSS simulations were conducted to evaluate key parameters (S11, S21, isolation), [Read More]