CAPACITY FEEDING ANTENNA AND WIRELESS COMMUNICATION DEVICE EQUIPPED WITH IT

摘要

In a dielectric substrate (2) on which a radiation electrode (3) and a feeding electrode (4) are formed, a plurality of insulating layers (7a-7e) are laminated integrally. On the surface of the same insulating layer of the dielectric substrate (2), the open end (3K) of the radiation electrode (3) and the capacity coupling end (4Y) of the feeding electrode (4) are formed. On the surface of the insulating layer where the open end (3K) of the radiation electrode (3) and the capacity coupling end (4Y) of the feeding electrode (4) are not formed, a floating electrode (5) is formed. The floating electrode (5) is formed commonly to the open end (3K) of the radiation electrode (3) and the capacity coupling end (4Y) of the feeding electrode (4) such that a capacity is formed between the open end (3K) of the radiation electrode (3) and the capacity coupling end (4Y) of the feeding electrode (4) oppositely to the laminating direction of the insulating layers (7a-7e).