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International Journal of Antennas and Propagation
Volume 2013, Article ID 746920, 7 pages
Review Article

Review of Low Profile Substrate Integrated Waveguide Cavity Backed Antennas

Microelectronic CAD Center, Hangzhou Dianzi University, Hangzhou 310018, China

Received 12 September 2013; Accepted 12 October 2013

Academic Editor: Bing Liu

Copyright © 2013 Guo Qing Luo 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.


Low profile cavity backed antennas (CBA) based on substrate integrated waveguide (SIW) technology presented in published papers have been reviewed in this paper. Their operating mechanisms have been discussed and methods for improving the performance, such as bandwidth enhancement, size reduction, and gain improvement, have been presented. These novel antennas retain the advantage of conventional metallic cavity backed antenna, including high gain, high front-to-back ratio, and low cross polarization level, and also keep the advantages of planar antenna including low profile, light weight, low fabrication cost, and easy integration with planar circuit.