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International Journal of Antennas and Propagation
Volume 2014, Article ID 201914, 10 pages
http://dx.doi.org/10.1155/2014/201914
Research Article

Development of Ultra-Broadband Base Station Antenna for All Mainstream LTE 700/800/900 MHz Frequency Bands

1Department of BSA, Tongyu Communication Inc., Zhongshan 528437, China
2Short Distance Detection & Communication Key Lab of Guangdong Province, South China University of Technology, Guangzhou 510640, China

Received 9 July 2014; Revised 21 October 2014; Accepted 21 October 2014; Published 20 November 2014

Academic Editor: Giacomo Oliveri

Copyright © 2014 Doudou Samb et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

LTE deployment is being accelerated due to its improved radio access structure meeting the requirements of current and next generation of wireless networks. Its low band application presents useful aspects such as low density of base station while providing good in-building penetration. In this work, we design and develop a dual-polarized base station antenna supporting 698 MHz to 960 MHz with an azimuth-plan half-power beam width of 90° covering all mainstream LTE 700/800/900 MHz frequency bands representing the widest low frequency range being actively used in the current mobile communication industry. In the design process, rigorous algorithm based on swarm method is developed to tune the electrical performances under strict base station antenna requirements. Experimental results from pattern tests demonstrate the design analysis and the significant advantages of using swarm method in the antenna development process.