CST – Computer Simulation Technology

Patch Antennas on Omega Structure Metamaterial

Title:
Patch Antennas on Omega Structure Metamaterial
Author(s):
A. Othman, M. H. Jusoh, A. A. Sulaiman, R. A. Awang, N. H. Baba, Z. I. Khan, M. Muhamad, M. F. Ain
Source:
IEEE International Conference on Antennas, Propagation and Systems
Vol./Issue/Date:
Dec. 2009
Year:
2009
Page(s):
88-1 - 88-4
Keywords:
patch antenna, metamaterial, negative permittivity, omega structure
Abstract:
This project proposes a new generation of antenna that applies metamaterial as a base construction. The current bulky size of antennas can easily be replaced by the newlyinvented metamaterial. The simulation results show that an antenna with a metamaterial substrate has improved size and return loss, while an antenna with a metamaterial cover has improved propagation directivity. A combination of two materials, RT5880 and Perfect Electric Conductor, in omega structures is able to produce the metamaterial features. An investigation of the S-parameters has been carried out to determine the negative permittivity of the metamaterial. The return loss from the simulated results meets the minimum specification of the -10-dB cutoff. Meanwhile, the radiation directivity of conventional antennas can be improved significantly with the usage of a metamaterial slab as a cover. The novel antenna is able to take advantage of technology to be smaller in size but better in performance.
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