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Title: Frequency-reconfigurable water antenna of circular polarization
Authors: Zou, Meng
Shen, Zhongxiang
Pan, Jin
Keywords: Antennas
Issue Date: 2016
Source: Zou, M., Shen, Z., & Pan, J. (2016). Frequency-reconfigurable water antenna of circular polarization. Applied Physics Letters, 108(1), 014102-.
Series/Report no.: Applied Physics Letters
Abstract: A circularly polarized frequency-reconfigurable water antenna with high radiation efficiency is proposed based on the design concept of combining a frequency-reconfigurable radiating structure with a frequency-independent feeding structure. In this letter, a resonator made of distilled water and an Archimedean spiral slot are employed as the radiating and feeding structures, respectively. The operating frequency of the antenna can be continuously tuned over a very wide range while maintaining good impendence matching and circular polarization by changing the dimensions of the water resonator. A prototype antenna is designed, fabricated, and measured. Simulated and measured results demonstrate that the designed antenna exhibits a wide tuning frequency range from 155 MHz to 400 MHz with an average radiation efficiency of about 90% and good circular polarization.
ISSN: 0003-6951
DOI: 10.1063/1.4939455
Schools: School of Electrical and Electronic Engineering 
Rights: © 2016 AIP Publishing LLC. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of AIP Publishing LLC. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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