| 摘要 |
PURPOSE: A dielectric filter is provided to improve the structure of a resonance hole and transmit a quality signal, for the lengthening of the first resonance hole (110) and the second resonance hole (120) in the dielectric filter to eliminate many noise signals mixed into high-frequency signals results in a defect of the increased total volume of the filter. CONSTITUTION: The filter comprises the dielectric body (130) (of light-angled tetrahedron in shape) possessing the first resonance hole (110) and the second resonance hole (120) and arranging the electric polarization with field, the conductor coating (150) covered on the surface of the dielectric body (130), the first and second trim parts (141, 142) with capacitance (CS) value which are implemented through the ring-shaping grinding processing of the conductor coating (150) located in the inner circumference of the first and second resonance holes(110, 120), an input terminal implemented through the processing of partial grinding of the conductor coating and located in the corner of the above dielectric body (130) opposite the first trim part (141), and output terminal (162) implemented through the processing of partial grinding of the above conductor coating and located on the corner of the dielectric body (130) opposite the second trim part (142).
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