Patent ID: 8138980
Filing Date: 2012-03-20
Classification: H01Q,H04B,H04M,Y02D

Abstract:
1. An antenna device for a radio apparatus, comprising: a base plate having; multiple surfaces, one of the multiple surfaces being a main surface, the main surface having the largest surface area among the multiple surfaces of the base plate; an antenna element disposed on a first end portion of the main surface of the base plate, the antenna element connected to the first end portion of the base plate through a feeding portion; a conductor plate disposed outwardly of the base plate in a width direction of the main surface of the base plate, the conductor plate having multiple surfaces, one of the multiple surfaces of the conductor plate being a conductor plate main surface, the conductor plate main surface having the largest surface area of the multiple surfaces of the conductor plate and being perpendicular to the main surface of the base plate; and a short-circuit conductor connected to a second end portion of the base plate, the second end portion being opposite the first end portion of the base plate; wherein the conductor plate is short-circuited to the second end portion of the main surface of the base plate through the short-circuit conductor.