ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE EMPLOYING THE SAME

摘要

A radiation electrode 3 is formed on a substrate 2 of a surface mount antenna 1. One end 3G of the radiation electrode 3 forms a ground connection portion connected to ground, and the other end 3K of the radiation electrode 3 forms an open end. A ground connection electrode 4 for connecting the open end 3K of the radiation electrode 3 to ground via a capacitance is provided on the substrate 2. No feeding electrode for feeding power to the radiation electrode 3 is provided on the substrate 2. This surface mount antenna 1 is mounted on a non-ground region (a region on which a ground electrode 8 is not formed) of a board 6 so as to constitute an antenna structure 7. On the board 6 of the antenna structure 7, a feeding electrode 11 for capacitively feeding power to the radiation electrode 3 is provided.