Patent ID: 6483406
Filing Date: 2002-11-19
Classification: H01L,H01P,H05K

Abstract:
A high-frequency module comprising at least one high-frequency device-mounting package and at least one external circuit board, wherein said high-frequency device mounting package comprises:a dielectric substrate having a first grounding layer embedded therein; a high-frequency device mounted on a first surface of the dielectric substrate; a first high-frequency signal transmission line disposed on the first surface of the dielectric substrate and connected to said high-frequency device; a second high-frequency signal transmission line disposed on a second surface of the dielectric substrate, coupled to said first high-frequency signal transmission line; and a pair of first grounding portions which are electrically connected to the first grounding layer and which are disposed on either side of an end of the second high-frequency signal transmission line; wherein said external circuit board comprises a dielectric board having a third high-frequency signal transmission line, a second grounding layer, and a pair of second grounding portions, said third high-frequency signal transmission line being disposed on a first surface of said dielectric board, said second grounding layer being disposed on a second surface of said dielectric board or inside thereof, and said second grounding portions being electrically connected to the second grounding layer and disposed on either side of an end of the third high-frequency signal transmission line, wherein said high-frequency device-mounting package and said external circuit board are arranged side-by-side, the second high-frequency signal transmission line of the high-frequency device-mounting package is electrically connected to the third high-frequency signal transmission line of the external circuit board through a first linear electrically conducting member, and the first grounding portions and the second grounding portions are electrically connected with each other through a second linear electrically conducting member.