DESIGN OF A MILLIMETER WAVE WAVEGUIDE BANDPASS FILTER FOR FUTURE 5G MOBILE NETWORKS

In this dissertation, the design of a WR-34 band (22-33 GHz) iris waveguide
bandpass filter with 28 GHz center frequency and with a relative bandwidth of 2.03%
is presented. An insertion loss method with a Chebyshev polynomial is used to
synthesize the desired filter response. To validate the filter design, a simulation model
is developed using the ANSYS High Frequency Structure Simulator (HFSS) software.
The S-parameters simulation results indicate that the center frequency of the filter is
27.995 GHz. The lower stopband frequency (fp1) is 27.71 GHz while the upper
stopband frequency (fp2) is 28.28 GHz. Therefore, the passband ranges from 27.71
GHz to 28.28 GHz, with a relative bandwidth of 2.03%.