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International Journal of Antennas and Propagation
Volume 2015 (2015), Article ID 495353, 10 pages
Research Article

Comparison Analysis of Single Loop Resonator Based Miniaturized Triple-Band Planar Monopole Antennas

Centre for RFIC and System Technology, School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China

Received 16 September 2014; Revised 21 December 2014; Accepted 24 December 2014

Academic Editor: Sanming Hu

Copyright © 2015 Kaimin Wu 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.


We systemically analyze and discuss a group of miniaturized triple-band planar monopole antennas by integrating with a single loop resonator (SLR) as part of the radiation patch. Two configurations (rectangular and circular shaped radiation patches) are presented and the corresponding SLRs are integrated in the patches to contribute additional operating frequencies. Two feed techniques (coplanar waveguide and microstrip feeds) are performed to couple the electromagnetic waves. The conventional planar monopole antennas without the SLRs are also analyzed comparatively. Numerical and experimental methods are performed to demonstrate and discuss the proposed designs.