Tri-band Circularly Polarized 3-Layer Stacked Patch Antenna
V. Anitha1, S. Sri Jaya Lakshmi2, M. L. S. N. S. Lakshmi3, Y. Dhatri Sai4, M. Aditya, Ch. Ravi Teja5

1V.Anitha, M.Tech, Communication and Radar Systems, Department of ECE, KLUniversity.
2M.L.S.N.S. Lakshmi, M.Tech, Communication and Radar Systems, Department of ECE, KLUniversity.
3Y. Dhatri Sai, M.Tech, Communication and Radar Systems, Department of ECE, KLUniversity.
4S. Sri Jaya Lakshmi, Women Scientist, Department of ECE, KLUniversity.
5M. Aditya, Ch. Ravi Teja, B.Tech, Department of ECE, KLUniversity

Manuscript received on April 11, 2012. | Revised Manuscript received on April 14, 2012. | Manuscript published on May 05, 2012. | PP: 403-406 | Volume-2 Issue-2, May 2012 . | Retrieval Number: B0633042212/2012©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: A probe-fed circularly polarized 3-layer stacked patch antenna is presented and simulated by using Commercial Ansoft High Frequency Structure Simulator. The design consists of three patches and three substrates. The lower and middle patches are of square-shaped where as the upper patch is of triangular-shaped. One slot is inserted in the lower layer, two slots are inserted in the middle layer and three slots are inserted on the upper layer so that bandwidth can be improved. Return loss, VSWR, gain, axial ratio and radiation patterns are simulated and analyzed. This antenna is best suitable for C-band applications.

Keywords: Circular polarization, Stacked patch antennas.