A novel Electric and Magnetic Two-Dimensionally Tunable SIW filter

In this paper, a novel electric and magnetic two-dimensionally tuned substrate integrated waveguide (SIW) filter is presented. Ferrite and PIN tuning columns are loaded in the SIW to realize the electric and magnetic two-dimensionally tuning. Simulation results show compared with the single electric tuning, the tuning range of the filter is extended by 79% with the magnetic tuning and compared with the single magnetic tuning, the tuning range of the filter is extended by 400% with the electric tuning. The tuning range of the single tuning method is extended by the electric and magnetic two-dimensionally tunability. Compared with[17], the filter which is easier to use not need simultaneous electric and magnetic tuning.