Compact Modified Ground Plane 1x2 Circular Patch Antenna
Abstract
–In this paper a 1x2 Compact Wide-band Circular Patch Antenna is proposed. The antennas are designed for the IEEE 802.16a (5GHz to 6GHz) and 802.16b (2GHz to 11GHz) frequency band. A modified ground plane is loaded at feeding point to introduce additional reactance which results in wideband response. Compact size is achieved by transforming dipole antenna to monopole antennas. The -10dB impedance bandwidth of antenna is 50%. To reduce the mutual coupling mushroom type Electronic Band-gap Structure (EBG) is designed and incorporated in between the two common ground plane circular patch. Antennas are placed four times closer than minimum required separation. The size reduction of the antenna is more than 80%. Proposed techniques are implemented on rectangular, circular and triangular shape patches. Proposed antenna is simulated using HFSS-13.
References
[11] VivekKushwah& G S Tomar, “Design of Microwave Patch Antenna using Neural Network” IEEE Intern’l Conference AMS 2009, pp- , 25-27 May 2009. [12] Mohammed M. Bait-suwailam, Muhammed Said Boybay and Omar M. Ramahi, Electromagnetic Coupling Reduction in High Profile Monopole Antennas Using Single-Negative Magnetic Meta-material for MIMO Applications, IEEE Transaction on Antennas and Propagation, Vol.58, No.9, September 2010. [13] Jiang Zhu and George V. Eleftheriades, A Simple Approach for Reducing Mutual Coupling in Two Closely Spaced Metamaterial-Inspired Monopole antennas, IEEE Antennas and Wireless Propagation Letters, Vol.9, 2010. [14] C. A. Balanis, Antenna Theory, Analysis and Design, Jhon Wiley & Sons, INC Newyork 1997 [15] R. Garg, P. Bhartia, I. Bahl, A. Ittipiboon, Microstrip Antenna Design Handbook, Artec House, Boston 2001
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