An improved ceramic duplex filter

The dual-view ceramic filter (10) and dielectric materials filter body (12), the upper surface (14), surface (16), side surfaces (18, 20, 22 and 24) and a substrates to the surface of the lower through hole. Surfaces (16, 18, 20, 22 and 24) is definition metallization layer (25) conductive material cover, surface (14) metallization. The socket on the adjacent to define a specific capacitance value comprising a conductive material layer. The coupler (94, 96 and 98) introduce the signal coupling and mistakenly the dual-view filter. In series, and a capacitor the surface treated on, which is useful to cooperate ends of.