Abstract: An antenna device includes: a radiator having a meander portion; and a conductor shorter than the radiator which is disposed opposite to the radiator. A coaxial cable is connected to the radiator and conductor. Respective line lengths of the radiator and conductor satisfy a predetermined relation with respect to a wavelength of a signal to be transmitted and received. The antenna device achieves at least one of improved antenna characteristics, downsizing, and improved mechanical strength.
Type:
Grant
Filed:
February 13, 2002
Date of Patent:
January 13, 2004
Assignee:
Matsushita Electric Industrial Co., Ltd.