Patent ID: 7522106

Claim:
An antenna having an extended operation frequency bandwidth, comprising: a feed; and a plurality of spaced radiators at certain intervals from each other, which are connected to the feed and receive current therefrom; wherein each of first radiating elements of the plurality of spaced radiators is formed in a triangular shape with an increasing width from a connection feed point to a respective second radiation elements of the plurality of spaced radiators; a connection feed is disposed between the feed and each of the radiators, where the connection feed is formed lengthwise in a direction in which the radiators are arranged; and each of the radiators includes the first radiating element connected to the connection feed, the second radiating element bent from the first radiating element, and a third radiating element bent from the second radiating element so as to face the first radiating element wherein the plurality of spaced radiators are formed in a three-dimensional shape.