Patent ID: 7417591
Filing Date: 2008-08-26
Classification: H01Q

Abstract:
1. An antenna apparatus, comprising: a ground board; a first antenna element corresponding to a first frequency band; a second antenna element corresponding to a second frequency band in the vicinity of, or overlapped with the first frequency band; a first power feeding part connecting the ground board to the first antenna element; and a second power feeding part connecting the ground board to the second antenna element, wherein the first antenna element is arranged in a direction at an angle of an integer multiple of 90 degrees with respect to a first substantially straight edge of the ground board, and the second antenna element is arranged in parallel with the first edge of the ground board; and wherein the length of a second substantially straight edge of the ground board is made to be longer than ¼ wavelength of the first frequency band or the second frequency band, and a slit is provided at a position of the second edge of the ground board, the position being located at approximately ¼ wavelength of the first frequency band or the second frequency band from a corner where the second edge meets the first edge of the ground board.