Vol 7, No 4 (2016) > Electrical, Electronics and Computer Engineering >

Left-Handed Metamaterial (LHM) Structure Stacked on a Two-Element Microstrip Antennas Array

Fitri Yuli Zulkifli, Nugroho Adi Saputro, Basari Basari, Eko Tjipto Rahardjo

 

Abstract: Antenna can be one of the largest components in a
wireless device; therefore antenna miniaturization can reduce the overall size
of wireless devices. One method used to reduce the element size of an antenna is by using metamaterial structures. This
paper discusses a Left-Handed Metamaterial (LHM) structure stacked on a two-element microstrip antennas array for miniaturization and gain enhancement at a frequency of 2.35 GHz. To observe the impact of the LHM
structure on the antenna, first this paper discuss the design of a
conventional rectangular shape microstrip antenna without a LHM structure, then a design of the LHM structure
which shows both negative permittivity and negative permeability. This LHM
structure is then implemented on a
conventional single element microstrip antenna and on a two-element microstrip antennas array. Results and discussion of implementation of the LHM
structure on the conventional microstrip antenna is provided in this paper. The
results show that good agreement between simulated and measured results has
been achieved. The simulation results show that the antenna works at a frequency of 2.29–2.42 GHz with a bandwidth of 128 MHz (5.4%) and a gain of 8.2 dBi, while the measurements show that the antenna works at a frequency of 2.26–2.41 GHz with a bandwidth of 146 MHz (6.21%) and a gain of 8.97 dBi. In addition, by comparing the substrate
dimension for the two element array antennas, with and without the LHM
structure, shows a 39% reduction is achieved.
Keywords: Array antenna; Metamaterial structure; Microstrip antenna; Split ring resonator

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References


Balanis, C.A., 2005. Antenna Theory Analysis and Design. Third edition, Wiley-Interscience, John Wiley & Sons, Inc., Hoboken, New Jersey, USA

Erentok, A., Luljak, P.L., Ziolkowski, R.W., 2005. Characterization of a Volumetric Metamaterial Realization of an Artificial Magnetic Conductor for Antenna Application. IEEE Transactions on Antennas and Wireless Propagation, Volume 53, pp. 160-172

Lai, A., Leong, K., Itoh, T., 2007. Infinite Wavelength Resonant Antennas with Monopolar Radiation Pattern based on Periodic Structures. IEEE Transactions on Antennas and Propagation, Volume 55(3), pp. 868-876

Notris, D.T., Phaedra, C., Dimitris, P., 2004. Dual Polarized Microstrip Patch Antenna, Reduced in Size by Use of Peripheral Slits. In: Proceedings European Conference on Wireless Technology, Amsterdam

Rahardjo, E.T., Yuswardi, W., Zulkifli, F.Y., 2012. Size Reduction of Microstrip Antenna with CRLH-TL Metamaterial and Partial Ground Plane Techniques. In: Proceedings of the International Symposium on Antennas and Propagation, Nagoya October 29-November 2, Japan

Sarabandi, K., George, P., 2006. Reducing Antenna Visual Signature using Metamaterials. In: Proceedings of the 25th Army Science Conference, Orlando, Fl. Nov. pp. 27-30

Selvanayagam, M., 2010. A Compact Printed Antenna with an Embedded Double Tuned Metamaterial Matching Network. IEEE Transactions on Antennas and Propagation, Volume 58(7), pp. 2354–2361

Singh, G., 2010. Double Negative Left-Handed Metamaterial for Miniaturization of Rectangular Microstrip Antenna. J. Electromagnetic Analysis & Applications, Volume 2, pp. 347–351

Smith, D.R., Padilla, W.J., Vier, D.C., Nemat-Nasser, S.C., Schultz, S., 2000. Composite Medium with Simultaneously Negative Permeability and Permittivity. Phys. Rev. Lett., Volume 84, pp. 4184–4187

Ziolkowski, R.W., 2003. Design, Fabrication, and Testing of Double Negative Metamaterials. IEEE Trans. on Antennas and Wireless Propag., Volume 51, pp. 1516-1529