Novel Application of MNG Metamaterial in Rectangular Microstrip Patch Antenna (Partially Loaded Case) for Dual Band Application

Prior to our current work, impossibility of sub-wavelength rectangular MSA has been demonstrated. However, in this paper it has been possible to get unconventional low value of fundamental resonance (TM0 delta 0 mode (0 < delta < 1)) with quite satisfactory radiation using MNG metamaterial partially in rectangular patch antenna. As a result, not only more than 50% size reduction but also dual band performance has been achieved by our proposed rectangular patch antennas. In case of such rectangular patch antenna, arbitrary low value of resonance along with arbitrary small length of the antenna is impossible. But yet low value of fundamental resonance (TM0 delta 0 mode (0 < delta < 1)) using interface resonance has been reported here. Moreover, we have shown that MNG metamaterial can not be loaded in small or medium sized rectangular MSA to modify any modes higher than fundamental TM010 mode. In such cases surprisingly conventional TM010 mode radiation pattern deteriorates. All the ideas regarding this metamaterial based rectangular microstrip patch antenna have been verified with analytical calculations, our proposed algorithm based simulated results and 'CST MICROWAVE STUDIO' based realistic simulations.