The effect of tuning screws of the S-parameters of a 5G bandpass Filter

In this paper, the design and simulation of a symmetrical waveguide filter are presented based on insertion loss method. The designed WR-34 is operating at 28 GHz, where its dimensions a=4.32mm b=8.64mm, fractional bandwidth 2.15% return level better than 16 dB, frequency range from 22Ghz to 33 GHz. structure 5 th -order bandpass with five resonators six circular inductive irises. order optimize response, tuning screws were added center each resonator, while two other positioned before first iris last wave ports. model developed in different simulators ANSYS high-frequency Structure Simulator (HFSS) CST Studio Suite so as validate obtained results depict effects S-parameters generating scenarios depending depth penetration screw .