Abstract: A ceramic dielectric band-pass filter includes a ceramic base, a first input and output electrode, and a second input and output electrode. The ceramic base includes an open surface, a short-circuit surface, and an IO surface. The ceramic base includes first resonant cavities and second resonant cavities penetrating the ceramic base. The first resonant cavities are arranged between the second resonant cavities and are arranged along a length direction of the ceramic base. The first input and output electrode and the second input and output electrode are arranged on the IO surface and extend to the open surface. The first input and output electrode, the second input and output electrode, and the first resonant cavities are coupled to form a sixth-order band-pass filter. The first input and output electrode and the second input and output electrode are coupled with the second resonant cavities to form notch filters.