Patent ID: 7535318
Filing Date: 2009-05-19
Classification: H01P

Abstract:
1. An electronic device comprising: a dielectric device; and a circuit board, the dielectric device including a dielectric substrate, a plurality of resonator units, and first and second terminals, said dielectric substrate including an external conductor film thereon, each of said resonator units including a hole and an internal conductor provided inside said hole and connecting with said external conductor film, said first terminal being provided on said dielectric substrate and electrically coupled with at least one of said resonator units, said second terminal being provided on said dielectric substrate and electrically coupled with at least another of said resonator units, a part of said external conductor film being provided directly between said first and second terminals, and the circuit board including the dielectric device mounted thereon such that the external conductor film is electrically connected to a ground conductor lying on the circuit board, and the first and second terminals are electrically connected to conductors lying on the circuit board separately, wherein an insulating film lies between the part of said external conductor film and the ground conductor.