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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2016-07-26
Wideband Circularly Polarized Square Slot Array Fed by Slotted Waveguide for Satellite Communication
By
Min Wang,

    Dr. Min Wang

    Nanjing University of Science and Technology

    China

    Homepage

Lei Hu,

    Dr. Lei Hu

    Nanjing University of Science and Technology

    China

    Homepage

Jingjing Chen,

    Dr. Jingjing Chen

    Nanjing University of Science and Technology

    China

    Homepage

Shishan Qi,

    Dr. Shishan Qi

    Nanjing University of Science and Technology

    China

    Homepage

Wen Wu

    Dr. Wen Wu

    Nanjing University of Science & Technology

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 61, 111-118, 2016
doi:10.2528/PIERL16030603 | Google Scholar

Abstract
A wideband circularly polarized (CP) slot array with high radiation efficiency is proposed. The cavity-backed square slots are designed to achieve wideband CP radiation with a unidirectional pattern. The slotted waveguide is adopted to feed the array with high efficiency. The square slot, cavity and feeding slot in the waveguide can be viewed as a radiating element. A CP slot array can be conveniently designed as traditional waveguide slot arrays, once the element admittance characteristic is determined. A 1-by-8 CP array operating at 12.5 GHz has been developed. Measured impedance bandwidth of 6.9%, axial-ratio (AR) bandwidth of 8.8% and a gain of 15.4 dBi have been achieved. This array can be conveniently expanded to a larger wideband CP array with a higher gain, which is preferred for the specific satellite communication applications.
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Citation
Min Wang, Lei Hu, Jingjing Chen, Shishan Qi, and Wen Wu, "Wideband Circularly Polarized Square Slot Array Fed by Slotted Waveguide for Satellite Communication," Progress In Electromagnetics Research Letters, Vol. 61, 111-118, 2016.
doi:10.2528/PIERL16030603
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