One-chamber multi-mode metal cylinder chamber filter

The invention discloses a one-chamber multi-mode metal cylinder chamber filter. The one-chamber multi-mode metal cylinder chamber filter comprises a cylindrical chamber, two end covers, at least one metal rod and two feed units, wherein two ends of the cylindrical chamber are openings and are sealed by utilizing the end covers, the end covers and the openings are correspondingly matched in shapes and sizes, the two feed units are respectively mounted on the two end covers of the cylindrical chamber, and the metal rod is arranged on the cylindrical chamber and is perpendicularly connected with a side wall of the cylindrical chamber. According to the one-chamber multi-mode metal cylinder chamber filter, the multi-mode concept is utilized, the fractional bandwidth of the filter is relatively wide, the metal rod is added to the wall of the metal resonance chamber for perturbation, the multi-mode filter with transmission zeros is realized, and the filter has advantages of small volume, simple structure and easy pr