The radiation property of composite right/left hand transmission line

One Dimension right/left hand materials are expected to be widely used in communication for their special properties. A structure comprised of cross-finger capacitors and short line with negative parameters which supports back-wave radiating was designed. Simulation using ADS software was carried out. It was found that the radiating property of the proposed structure was contrary to that of the traditional transmission line. With the units of the proposed structure increased the radiating frequencies take on increased tendency meanwhile it´s radiating also changed.