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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2012-06-01
A Novel Circular Slot Antenna with Two Pairs of T-Shaped Slots for WLAN/WiMAX Applications
By
Jiao-Jiao Xie,

    Dr. Jiao-Jiao Xie

    Xidian University

    China

    Homepage

Ying-Zeng Yin,

    Professor Ying-Zeng Yin

    Xidian University

    China

    Homepage

Shuan-Long Pan,

    Dr. Shuan-Long Pan

    Xidian University

    China

    Homepage

Liang Sun

    Dr. Liang Sun

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 32, 49-57, 2012
doi:10.2528/PIERL12040606 | Google Scholar

Abstract
A novel circular slot antenna with two pairs of T-shaped slots is proposed for satisfying WLAN and WiMAX applications simultaneously. The proposed antenna consists of a 50 Ω microstrip feed line with a tuning stub on the top and a circular slot ground plane with an embedded straight strip and two pairs of etched T-shaped slots on the bottom side. By carefully adjusting the length of the straight strip, the proposed antenna can operate in two separate bands. With the use of two pairs of T-shaped slots, a new resonant frequency has been excited, and the impedance bandwidth can be widened. The measured results show that the 10 dB return loss bandwidths of the proposed antenna are 760 MHz (3.18-3.94 GHz) and 1002 MHz (5.05-6.07 GHz), which can cover both 5.2/5.8 GHz WLAN bands and 3.5/5.5 GHz WiMAX bands. The design evolution and parametric study of the proposed antenna are presented to provide information for designing and optimizing such an antenna. Furthermore, good omnidirectional radiation patterns with appreciable antenna gain are obtained over the operating bands.
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Citation
Jiao-Jiao Xie, Ying-Zeng Yin, Shuan-Long Pan, and Liang Sun, "A Novel Circular Slot Antenna with Two Pairs of T-Shaped Slots for WLAN/WiMAX Applications," Progress In Electromagnetics Research Letters, Vol. 32, 49-57, 2012.
doi:10.2528/PIERL12040606
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