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International Journal of Antennas and Propagation
Volume 2017 (2017), Article ID 2563927, 12 pages
https://doi.org/10.1155/2017/2563927
Research Article

Minimized Low-Profile Wideband Antennas Using High Impedance Surface

State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China

Correspondence should be addressed to Yizhu Shen; nc.ude.ues@nehs.uhziy

Received 5 April 2017; Revised 19 June 2017; Accepted 25 July 2017; Published 19 September 2017

Academic Editor: Xianming Qing

Copyright © 2017 Yizhu Shen. 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.

Abstract

This paper proposes minimized low-profile wideband antenna by employing high impedance surface (HIS), for wireless application scenarios at radio frequency, microwave, and even terahertz. To validate this concept with low cost and easy measurement, two prototypes at radio frequency are fabricated and tested. Firstly, antenna with dielectric-substrate reflector is proposed and analyzed and 4 × 6 HIS array is employed to minimize the antenna size to , while maintaining antenna performances such as bandwidth, gain, and directive radiation. Secondly, a substrate-less HIS is proposed to improve the antenna bandwidth from 36% to 52% and also reduces the antenna weight by 72%.