Summary
International Symposium on Antennas and Propagation
2009
Session Number:2A3
Session:
Number:2A3-4
LEFT-HANDED METAMATERIAL INCORPORATED WITH CIRCULAR POLARIZED MICROSTRIP ANTENNA
H. A. Majid, M. K. A. Rahim, T. Masri,
pp.317-320
Publication Date:2009/10/21
Online ISSN:2188-5079
Summary:
Left-Handed Metamaterial (LHM) is an interesting material to be investigated where this artificial material has several unique properties such as the backward wave and the negative refraction. The history of LHM was started from Veselago when he made a theoretical speculation of this artificial material that exhibit negative permittivity and negative permeability. Thirty four years later, on 2001, Smith made the first prototype structures of LHM [3] where the LHM is a combination of Split Ring Resonator (SRR) and thin wire (TW). One of the unique properties of LHM is negative refraction which will produce the focusing effect. With this property, the focusing affect of LHM made a low gain antenna becomes directive and have an increment of gain [1 and 2]. This paper discussed and analyzed the properties of the 2x2 array patch circular polarized microstrip antenna with and without the LHM structure. The designed LHM is a combination of a modified SRR and capacitance loaded strip (CLS). The LHM and antenna is designed to operate at 2.4 GHz. The negative permittivity and negative permeability of the simulated LHM structures is presented. The results show that the gain of the antenna increased and it also change the polarization of the 2x2 array patch circular polarized microstrip antenna to a linear polarized antenna after the integration with the LHM.