Reconfigurable wave trapping frequency band type ultra wide band band-pass filter based on cross-shaped resonator

The utility model discloses a reconfigurable wave trapping frequency band type ultra wide band band-pass filter based on a cross-shaped resonator. The reconfigurable wave trapping frequency band type ultra wide band band-pass filter comprises a cross-shaped resonator. Three stubs of the resonator connect capacitors to the ground, and a parallel coupling feeder structure is adopted. According to the utility model, the distribution parameter microstrip line design is adopted. According to the utility model, advantages, such as light weight, small size, good reliability, good performance, good temperature stability, mass production, low cost, etc., can be realized, and is particularly suitable for ultra wide band communication systems in different working environments, digital radars, individual soldier satellite mobile, military and civil multimode and multiplex communication system terminals, and corresponding systems having harsh requirements on the weight, the performance and the reliability.