Microwave low waveband TM010 module high selectivity cavity dielectric filter

The invention discloses a micro-wave low-band TM010 mode high-selectivity cavity dielectric filter, which is at least provided with two cylindrical cavity resonators, wherein cylindrical micro-wave dielectric materials are arranged in the cavity resonators and are provided with resonant frequency regulation holes, the cylindrical cavity resonators are numbered according to the sequence, a centralized coupling window is arranged between the two cavity resonators with adjacent serial numbers, resonant frequency adjustment screws and an inter-cavity coupling strength adjustment screw extend into the resonant frequency regulation holes of the cylindrical micro-wave dielectric materials of the cavity resonators and the centralized coupling window respectively, the micro-wave dielectric materials in the head and tail cavity resonators are also provided with probe holes, and probes of input/output interfaces are inserted into the corresponding probe holes respectively. The resonance mode of the metal cylindrical res