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Characteristics of superstrate-loaded circular polarization square-ring microstrip antennas on thick substrate

✍ Scribed by Chow-Yen-Desmond Sim; Jeen-Sheen Row; Ming-Yu Chen

Book ID
102522260
Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
174 KB
Volume
47
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

The characteristics of circular‐polarization (CP) square‐ring microstrip antennas loaded with superstrate are studied in this paper. Firstly, several CP antenna prototypes with various substrate thicknesses and inner‐slot sizes are designed, and they are excited by a coupling‐strip feed in order to overcome the high‐impedance problem of the square‐ring microstrip antenna. Then, superstrates with different thicknesses and permittivities are attached to the antenna prototypes in order to evaluate their effects on the CP performances. The experimental results show that the effects are more obvious for the square‐ring microstrip antenna with a larger inner‐slot size. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 567–570, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21231

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