CAPACITY FEEDING ANTENNA AND WIRELESS COMMUNICATION DEVICE EQUIPPED WITH IT

摘要

A dielectric substrate having a radiation electrode 3 and a feed electrode 4 formed thereon is formed such that a plurality of insulator layers 7a to 7e are stacked and combined. An open end 3K of the radiation electrode 3 and a capacitive coupling end 4Y of the feed electrode 4 are formed on a surface of the same insulator layer of the dielectric substrate 2. A floating electrode 5 is formed on a surface of an insulator layer on which the open end 3K of the radiation electrode 3 and the capacitive coupling end 4Y of the feed electrode 4 are not formed. The floating electrode 5 is arranged in such a manner as to commonly face both the open end 3K of the radiation electrode 3 and the capacitive coupling end 4Y of the feed electrode 4 in the stacking direction of the insulator layers 7a to 7e so as to form capacitance between itself and the open end 3K of the radiation electrode 3 and between itself and the capacitive coupling end 4Y of the feed electrode 4.