A Low‐Profile Circularly Polarized Short Backfire Antenna with High Impedance Surface. Issue 8 (28th May 2013)

• Record Type: Journal Article
• Authors: Yi, Huan; Qu, Shi‐Wei
• Is Part Of: Microwave and optical technology letters. Volume 55:Issue 8(2013:Aug.)
• Page Start: 1779
• Page End: 1784
• Publication Date: 2013-05-28
• Subjects: Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.27696
• Languages: English
• ISSNs: 0895-2477

Abstract

<abstract abstract-type="main"> <title>ABSTRACT</title> <p>In this article, high impedance surface (HIS) structures are used as a primary reflector of a short backfire antenna to reduce its profile. Crossed dipoles fed by a power divider with 90° phase shift are adopted as an exciter to realize circular polarization. It is demonstrated that the antenna profile can be reduced from 0.6 to 0.3 λ₀ by using the HIS structures as a primary reflector. It also achieves a 3‐dB axial ratio bandwidth of more than 25% with a standing‐wave ratio below 2, and the peak broadside gain is around 13.47 dBi with a 3‐dB gain bandwidth of 22.5%. The simulated and experimental results are presented and discussed in the end of this article. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1779–1784, 2013</p> </abstract>