Patent ID: 7023301
Filing Date: 2006-04-04
Classification: H01P

Abstract:
1. A laminated filter comprising: a plurality of grounding conductors disposed inside or outside of an integrated device comprised of a plurality of dielectric layers laminated together; a first filter sandwiched between two of said grounding conductors, said grounding conductors having a shielding function; a second filter sandwiched between said two grounding conductors; and a single shielding conductor connected to said plurality of grounding conductors; wherein said first filter is disposed in an area different from an area of said second filter, and a boundary area is disposed between the area of said first filter and the area of said second filter; and the single shielding conductor is disposed in said boundary area and only the single shielding conductor by itself and free-of other coupling electrodes shields electromagnetic induction between said first and second filters; the first and second filters each including strip line conductors disposed on a single dielectric layer of the plurality of dielectric layers; and the single shielding conductor being a strip line disposed only on the single dielectric layer.