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International Journal of Antennas and Propagation
Volume 2016, Article ID 1286398, 10 pages
Research Article

Design of Wideband Dual-Polarized Planar Antenna Using Multimode Concept

Department of Microwave Engineering, School of Electronic Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, China

Received 30 June 2016; Revised 7 September 2016; Accepted 10 October 2016

Academic Editor: Miguel Ferrando Bataller

Copyright © 2016 Deqiang Yang 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 wideband dual-polarized planar antenna is designed and analyzed by using the theory of characteristic modes (TCM). The eigenvalue, eigencurrent, characteristic pattern, and modal weighting coefficient are analyzed to bring physical insight to this kind of antenna. The results demonstrate that there are two modes resonant in the operating band for each polarization, which have been combined to form a wider frequency band. A bandwidth of 60.2% (1.72–3.2 GHz) for VSWR < 1.5 with high isolation of 32 dB is achieved simultaneously. The size of the radiator structure is 0.33 × 0.33 × 0.22 ( refers to the center operating frequency).