Application of standard window functions in side-lobe minimization in rectangular antenna array based smart antennas

  • Robert Macharia Maina Jomo Kenyatta University of Agriculture and Technology
  • Peter Kihato Jomo Kenyatta University of Agriculture and Technology
  • Kibet Lang'at Jomo Kenyatta University of Agriculture and Technology

Abstract

Smart antennas are commonly utilized in modern wire-less communication systems with an aim of improving network capacity. Smart antennas optimize radiation/ reception in wireless communication links and are composed of antenna array structures and digital beamforming platforms. A typical beamformed radiation reception pattern usually features undesired radiation/ reception lobes (side-lobes). This paper seeks to analyze the capability of standard window functions in minimizing such side-lobes on the basis of a rectangular antenna array null steering problem. Particle Swarm Optimization (PSO) algorithm is utilized to solve the null steering problem. Bartlett, Blackman, Hann, Hamming, Tukey and Bohman windows are considered. MATLAB software environment is used as the main analysis tool.
Keywords—Null steering, Rectangular antenna array, Side-lobe, Smart Antenna, Window function
Published
Sep 26, 2017
How to Cite
MAINA, Robert Macharia; KIHATO, Peter; LANG'AT, Kibet. Application of standard window functions in side-lobe minimization in rectangular antenna array based smart antennas. Proceedings of Sustainable Research and Innovation Conference, [S.l.], p. 166-172, sep. 2017. ISSN 2079-6226. Available at: <http://sri.jkuat.ac.ke/ojs/index.php/proceedings/article/view/594>. Date accessed: 24 feb. 2018.