Patent ID: 9414482
Filing Date: 2016-08-09
CPC Classification: H01L,H01P,H03H,H04B,H05K

Claim Text:
1. A high-frequency signal transmission line comprising: an element assembly including one or more insulating layers, and a first main surface and a second main surface; a linear signal line disposed in the element assembly; a first ground conductor that faces the signal line and continuously extends along the signal line, the first ground conductor being located on or at a side of the first main surface with respect to the signal line; and a second ground conductor that faces the first ground conductor via at least one of the one or more insulating layers and includes a plurality of openings arranged along the signal line, the second ground conductor being located on or at a side of the second main surface with respect to the signal line; wherein the element assembly includes a connection portion used for external connection, and a transmission line portion where the first ground conductor extends along the signal line; the first main surface of the element assembly is a contact surface with a metal article; the first ground conductor is electrically connected to the metal article by connection between the transmission line and the metal article via solder or a conductive adhesive; and no portion of the first ground conductor in the transmission line portion includes any openings.