Design of Microstrip Antennas Arrays for Applications in Wireless Communications

Abstract: This paper analyses the influence of microstrip antenna arrays designed for a frequency of 2.5 GHz, aiming at applications in wireless communications, in special, 4G Technology. From a standard antenna with circular patch, elements are introduced to obtain linear and circular array, since arrays are interesting, whenever it want high gains. While the linear arrays are simple and practical, circular arrays can provide better symmetry. All prototypes are built and measured data are compared with the simulated data showing a good agreement REFERENCES [1] W. Y. Qiang and F. Tao, The Study on a Patch Antenna with PBG Structure, Third International Symposium on Intelligent Information Technology Application, 2009. [2] C. A. Balanis, Antenna Theory – Analysis and Design, Harper & Row, Publishers, 1982. [3] D. C. Lacerda. Design and construction of microstrip antenna for cellular mobile system, University of Brasilia, 2008. [4] H. C. C. Fernandes, C. G. Moura and M. P. Sousa Neto, Design of a ultra-wideband monopole antenna using split ring resonator for notching frequencies, MOTL-Microwave and Optical Technology Letters, Vol 56 , No. 6, 2014, pp. 1471-1473. [5] P. Ioannides and C. A. Balanis, Uniform circular arrays for smart antennas, Antennas and Propagation Magazine, IEEE , Vol.47, No.4, 2005, pp.192,206. [6] R. Sanudin and T. Arslan, Semi-circular antenna array for azimuth DOA estimation, Antennas and Propagation Conference (LAPC) , Vol. 1, No. 4, 2012, pp. 12-13. [7] S. Lizhong, M. Ning, L. Chongshen and W. Qun, Simulation and Analysis of a Microstrip Circular Array Antenna at 15GHz, 4th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM, Vol.1, No.4, 2008, pp. 12- 14.