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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2012-07-18
Design of CPW-Fed Circularly Polarized Antenna with Two Orthogonal Slots
By
Mao-Ze Wang,

    Dr. Mao-Ze Wang

    National Laboratory of Antennas and Microwave Technology

    Xidian University

    China

    Homepage

Fu-Shun Zhang,

    Dr. Fu-Shun Zhang

    Xidian University

    China

    Homepage

Yang Zhu,

    Dr. Yang Zhu

    Xidian University

    China

    Homepage

Liu-Tao Ma

    Dr. Liu-Tao Ma

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 33, 109-117, 2012
doi:10.2528/PIERL12053107 | Google Scholar

Abstract
A design of coplanar waveguide (CPW)-fed circularly polarized slot antenna is presented. The proposed antenna consists of two orthogonal slots. By making use of the symmetric current and electric-field distributions of the two gaps of CPW-fed, a simple power divider is easily achieved. By adjusting the length of the two orthogonal slots and CPW-fed bent slot, a circularly polarized wave of two orthogonal modes with equal amplitude and phase difference of 90 degree is excited. The numerical results show that the 10 dB return loss bandwidth and 3 dB axial ratio (AR) bandwidth are 50.8 % and 11.2 % respectively. A prototype antenna is fabricated and measured, the measured results show that the proposed antenna achieves a good performance of circularly polarization.
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Citation
Mao-Ze Wang, Fu-Shun Zhang, Yang Zhu, and Liu-Tao Ma, "Design of CPW-Fed Circularly Polarized Antenna with Two Orthogonal Slots," Progress In Electromagnetics Research Letters, Vol. 33, 109-117, 2012.
doi:10.2528/PIERL12053107
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