Patent ID: 6727784
Filing Date: 2004-04-27
Classification: H01P

Abstract:
A dielectric device comprising a dielectric substrate, at least one resonator unit and a terminal, wherein:the dielectric substrate has an external conductor film on a first surface and other external surfaces; the resonator unit comprises a first hole and a second hole; the first hole is provided to the dielectric substrate, has one end being open in the first surface, extends from the first surface toward an external surface opposite thereto, and has a first internal conductor in the interior, the first internal conductor being separated from the external conductor film on the first surface by a gap; the second hole is provided to the dielectric substrate, opens in an external surface not opposing the first surface, connects with the first hole in the interior of the dielectric substrate, and has a second internal conductor in the interior, one end of the second internal conductor being connected to the first internal conductor in the interior of the dielectric substrate, and the other end being connected to the external conductor film; the other end of the first hole protrudes lengthwise past the connecting area with the second hole; and the terminal is provided on the external surface of the dielectric substrate, and is electrically coupled with the first internal conductor provided at the other end of the first hole via the dielectric substrate.