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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2015-08-17
Three Optimized Omnidirectional Microstrip Antennas (OMA) for WLAN Applications
By
Seyed Hassan Esmaeli,

    Dr. Seyed Hassan Esmaeli

    School of Electrical Engineering

    Iran University of Science and Technology

    Iran

    Homepage

Mohammad Khalaj-Amirhosseini,

    Dr. Mohammad Khalaj-Amirhosseini

    Iran University of Science and Technology

    Iran

    Homepage

Seyed Hassan Sedighy

    Dr. Seyed Hassan Sedighy

    Electrical Engineering Department

    Iran University of Science and Technology

    Iran

    Homepage

Progress In Electromagnetics Research Letters, Vol. 55, 39-43, 2015
doi:10.2528/PIERL15061105 | Google Scholar

Abstract
In this paper, three omnidirectional microstrip array antennas are optimized, fabricated and measured. The proposed planar antennas are composed from series of microstrip line sections with inverted top and bottom conductors at each section. The antenna design parameters are optimized to design three different antennas: wide bandwidth, high-gain and dual-band antennas. In the wideband antenna, a good impedance matching is obtained for relative bandwidth of 31% that covers the frequency range of WLAN. The dualband omnidirectional antenna operates at 2.45 GHz and 5.25 GHz with gain of 6.69 dBi and 7.71 dBi, respectively. Also, the optimized high-gain antenna achieves 9.3 dBi gain. The three optimized antennas are fabricated and tested. The measurement results show a very good agreement with the simulation ones. The optimization results verify the ability and capability of the antenna to achieve the desired specifications.
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Citation
Seyed Hassan Esmaeli, Mohammad Khalaj-Amirhosseini, and Seyed Hassan Sedighy, "Three Optimized Omnidirectional Microstrip Antennas (OMA) for WLAN Applications," Progress In Electromagnetics Research Letters, Vol. 55, 39-43, 2015.
doi:10.2528/PIERL15061105
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