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International Journal of Antennas and Propagation
Volume 2012, Article ID 512975, 7 pages
http://dx.doi.org/10.1155/2012/512975
Research Article

A Novel Dual-Band MIMO Antenna with Lower Correlation Coefficient

Department of Microwave Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China

Received 18 August 2011; Revised 14 September 2011; Accepted 28 September 2011

Academic Editor: Yuan Yao

Copyright © 2012 Jian Zhang 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

This paper demonstrates a novel dual-band operated MIMO antenna which consisted of planar monopole (main antenna) and 3D slot element (auxiliary antenna). The main antenna is printed on a 1.6 mm thick FR4 board, while the auxiliary antenna is fabricated with gold-coated copper. A lumped impedance network is applied to enhance matching effect at port1. From simulations by commercial software, it can be found that the proposed antenna is able to cover GSM800, GSM900 (lower band), and LTE/ WiMAX/WLAN (higher band) quite well. Good agreements between simulations and measurements are obtained. Corresponding measured results, antenna efficiency, peak gain, and radiation patterns, are presented at the same time. By equipping a passive decoupling element, the coupling power on the ground is radiated into free space, and great enhancement of isolation between antenna elements, especially for lower band, is achieved.