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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2007-10-17
Quasi-Metallic-Wall Technique for Increasing the Efficiency of CB-CPW Antennas
By
Mourad Nedil,

    Prof. Mourad Nedil

    Applied Science

    UQAT (University of Quebec at Abitibi-Temiscamingue)

    Canada

    Homepage

Mohamed Adnane Habib,

    Dr. Mohamed Adnane Habib

    Computer Science & Engineering

    Yanbu Faculty College

    Saudi Arabia

    Homepage

Tayeb Denidni,

    Professor Tayeb Denidni

    INRS

    Canada

    Homepage

Halim Boutayeb

    Prof. Halim Boutayeb

    Université du Québec en Outaouais

    Canada

    Homepage

Progress In Electromagnetics Research, Vol. 78, 437-455, 2008
doi:10.2528/PIER07092505 | Google Scholar

Abstract
This paper presents a new quasi-metallic-wall technique for improving the gain of CB-CPW single antenna and arrays. This technique allows reducing the surface wave losses of the CB-CPW antennas, which decreases the antenna radiation efficiency. It consists on including pins as quasi-metallic wall between the upper and lower ground planes in the CB-CPW antenna structure. To validate the proposed approach, a CB-CPW-slot antenna fed through an inductive coupled CPW-line operating at 5.8 GHz is considered. This approach allows to increase the antenna efficiency from 70% to 95% around the operating frequency. The antenna gain achieves then an improvement of 2 dBi. Also, an antenna array is designed and the pins technique is also applied to prove its applicability for the array case. An efficiency increase from 64% to 95% was achieved. Both single antenna and antenna array withpins were fabricated and measured. A good agreement between numerical and experimental results was obtained.
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Citation
Mourad Nedil, Mohamed Adnane Habib, Tayeb Denidni, and Halim Boutayeb, "Quasi-Metallic-Wall Technique for Increasing the Efficiency of CB-CPW Antennas," PIER, Vol. 78, 437-455, 2008.
doi:10.2528/PIER07092505
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