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International Journal of Antennas and Propagation
Volume 2012, Article ID 890705, 6 pages
Research Article

Multiband Planar Monopole Antenna for LTE MIMO Systems

School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received 9 August 2011; Accepted 9 September 2011

Academic Editor: Li Yang

Copyright © 2012 Yuan Yao 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.


A novel multiband-printed planar monopole antenna for LTE multi-input and multi-output (MIMO) application is proposed. A meandering microstrip line-loaded monopole antenna with multiband characteristic is presented. The proposed antenna provides five frequency bands for LTE application, covering 0.7, 1.7, 2.1, 2.3, and 2.5 GHz. In order to provide low mutual coupling and envelope correlation, two of the antennas are combined with orthogonal polarizations. The mutual coupling of the antenna is lower than −13 dB across the operation bands. Both the simulated and measured results are shown to illustrate the performances of the proposed antenna.