Miniaturized compound spiral slot antenna

✍ Scribed by Zhu Yu-Xiao; Zhong Shun-Shi; Xu Sai-Qing

• Book ID: 102518047
• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 252 KB
• Volume: 50
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.23801

✦ Synopsis

Abstract

This article introduces a miniaturized compound spiral slot antenna with a wideband balun and a back cavity. The simulated and experimental results show that the proposed antenna presents good circular polarization and wideband properties. Its measured return loss is less than −10 dB in the frequency range 0.75 to 8 GHz (10.7:1) and the axial ratio is less than 3.5 dB in the range 0.95 to 8 GHz. Comparing with the conventional spiral antenna, the proposed antenna diameter is only one fourth of that of the former, therefore the antenna size is significantly reduced. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2799–2801, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23801