Patent ID: 7148851
Filing Date: 2006-12-12
Classification: H01Q

Abstract:
1. An antenna device, comprising: (a) a mounting substrate having a ground portion and a non-ground portion; (b) a chip antenna mounted onto said non-ground portion, which comprises a substrate, a first radiation electrode formed on said substrate, a power-supplying electrode connected by direct connection to or capacitance coupling with the other end of said first radiation electrode, and a terminal electrode connected by direct connection to or capacitance coupling with one end of said first radiation electrode; and (c) at least one second radiation electrode formed in a conductor pattern on said non-ground portion, said second radiation electrode having one end connected by direct connection to or capacitance coupling with said terminal electrode and the other end which is an open end, and a cavity existing between said chip antenna and/or said second radiation electrode and said ground portion of said mounting substrate.