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International Journal of Antennas and Propagation
Volume 2017, Article ID 6290539, 8 pages
Research Article

A Compact Wide-Band Hybrid Dielectric Resonator Antenna with Enhanced Gain and Low Cross-Polarization

1Department of Aeronautics and Astronautics, University of Electronic Science and Technology of China, West Hi-Tech Zone, Xiyuan Road 2006, Chengdu, Sichuan 611731, China
2Institute of Electromagnetics, Southwest Jiaotong University, No. 111 North 1st Section of Second Ring Road, Chengdu 610031, China

Correspondence should be addressed to Feibiao Dong; moc.361@gnodoaibief

Received 9 January 2017; Accepted 6 February 2017; Published 26 April 2017

Academic Editor: Miguel Ferrando Bataller

Copyright © 2017 Feibiao Dong 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.


By loading two printed patches to the dielectric resonator antenna (DRA), a compact wide-band hybrid dielectric resonator antenna with enhanced gain and low cross-polarization is presented. The proposed antenna utilizes a combination of a rectangular dielectric resonator and two printed patches. Due to the hybrid design, multiple resonances were obtained. By adding two air layers between the dielectric resonator and the printed patches, the bandwidth has been significantly improved. Compared to the traditional hybrid dielectric resonator antenna, the proposed antenna can achieve wide bandwidth, high gain, low cross-polarization, and even small size simultaneously. The prototype of the proposed antenna has been fabricated and tested. The measured −10 dB return loss bandwidth is 25.6% (1.7–2.2 GHz). The measured antenna gains are about 6.3 and 8.2 dBi in the operating frequency band. Low cross-polarization levels of less than −28.5 dB and −43 dB in the E-plane and H-plane are achieved. Moreover, the overall dimensions of the antenna are only 67 × 67 × 34 (mm3). The proposed antenna is especially attractive for small base antenna applications.