| 摘要 |
PURPOSE: A dielectric filter is provided to completely remove noise signals which are introduced in low and high frequency bands by achieving the transmission zero in the high frequency band. CONSTITUTION: A dielectric filter(100) comprises a dielectric body section(110) having a plurality of resonance holes(111,112). The dielectric body section(110) has a rectangular shape. A conductive coating portion(120) is coated on the dielectric body section(110). An input terminal(131) and an output terminal(132) are provided by partially grinding the conductive coating portion(120). A filtering section(140) is provided to improve the filtering feature. In order to form the filtering section(140), the coating portion(120) is removed from an upper surface of the dielectric body section(110). In addition, the conductive coating portion(120) coated on an upper edge portion is partially removed. In this state, the conductive coating portion(120) is removed from a right edge portion of the dielectric body section(110) to the upper surface of the dielectric body section(110).
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