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Dual-band circularly polarized antenna using combined C-shaped and L-shaped slots excited by a microstrip line

✍ Scribed by The-Nan Chang; Yeah-Lin Han

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
659 KB
Volume
53
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

An L‐shaped slot loaded inside a C‐shaped slot is used to realize a dual‐band antenna fed by a microstrip line. Two circularly polarized waves are generated at the 1.57 and the 2.45 GHz band. The width in the C‐slot is uniform, whereas the width in the L‐slot is nonuniform. In the L‐slot, the width in the vertical part is made wider than that in the horizontal part. We found that the width in the vertical part of the L‐slot is an efficient tuning parameter. The antenna can achieve about 6% axial ratio bandwidth at both bands. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1041–1044, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25928

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