Compact CPW-Fed Antenna with Circular Polarization Characteristics in WLAN Frequency Band

A novel co-planar waveguide (CPW)- fed antenna with circular polarization (CP) characteristics in the 5.1 GHz ? 5.8GHz is presented. By adding a vertical stub and a rotated L shaped stub to the antenna structure, a bandwidth of 5 GHz ? 8GHz (46 %) for S11 < -10 dB is achieved and also circular po...

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Bibliographic Details
Published in:Applied Computational Electromagnetics Society journal 2013, Vol.28 (10), p.938
Main Authors: Majidzadeh, M, Nourinia, J, Ch. Ghobadi
Format: Article
Language:English
Subjects:
Antenna design
Antennas
Bandwidths
Circular polarization
Coplanar waveguides
Frequencies
Local area networks
Polarization characteristics
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Summary:A novel co-planar waveguide (CPW)- fed antenna with circular polarization (CP) characteristics in the 5.1 GHz ? 5.8GHz is presented. By adding a vertical stub and a rotated L shaped stub to the antenna structure, a bandwidth of 5 GHz ? 8GHz (46 %) for S11 < -10 dB is achieved and also circular polarization characteristics is generated in the 5.1 GHz ? 5.8 GHz, which completely covers the wireless local area network (WLAN) frequency band. The antenna has a very simple structure and occupies a compact area of 25 × 25 × 1 mm3. The very simple structure and small size are of the marvelous merits of the proposed antenna. The antenna design process, impedance bandwidth and axial ratio (AR) bandwidth enhancement process are discussed in detail.
ISSN:1054-4887
1943-5711