MULTI BAND ANTENNA AND A COMMUNICATION DEVICE USING THE SAME, CAPABLE OF CONTROLLING REACTANCE ELEMENTS BY USING A CRLH-TL STRUCTURE

摘要

PURPOSE: A multi band antenna and a communication device using the same are provided to reduce the size of an antenna by controlling reactance elements through periodical arrangement of a CRLH-TL(Composite Right/Left Handed-Transmission Line) structure.;CONSTITUTION: A radiation element includes a CRLH-TL structure. The radiation element is formed by arranging at least one unit cell on a dielectric carrier(110). The resonant frequency of the radiation element is determined by the reactance element of the CRLH-TL. A feeding line(120) of the radiation element is formed on one side of the dielectric carrier. The unit cell of the radiation device includes a patch(130) and a stub(140). The patch is formed on one side of the dielectric carrier. The stub is formed on the other side of the dielectric carrier to be connected to one end of the patch.;COPYRIGHT KIPO 2010