Two different 5G interdigital bandpass filters (3.7 GHz -4.2 GHz) and (5.975 GHz -7.125 GHz) are presented in this paper. Good high order second harmonics suppression is obtained using this type of filters. For both bands the results are good in terms of return and insertion loss. Two different via hole radii are used at (5.975 GHz -7.125 GHz) and gave good reflection and transmission coefficients results. These filters are suitable for the recent wireless applications such as 5G filtering and reconfigurable antennas. The simulation is carried out using high frequency structure simulator (HFSS) software which is based on the Finite Element Method (FEM).
（英）
Two different 5G interdigital bandpass filters (3.7 GHz -4.2 GHz) and (5.975 GHz -7.125 GHz) are presented in this paper. Good high order second harmonics suppression is obtained using this type of filters. For both bands the results are good in terms of return and insertion loss. Two different via hole radii are used at (5.975 GHz -7.125 GHz) and gave good reflection and transmission coefficients results. These filters are suitable for the recent wireless applications such as 5G filtering and reconfigurable antennas. The simulation is carried out using high frequency structure simulator (HFSS) software which is based on the Finite Element Method (FEM).