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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2023-01-04
Circularly Polarized Conformal Antenna with Dual V-Shaped Coupling Feed Lines
By
Zhengkun Yang,

    Dr. Zhengkun Yang

    Jiangnan Design and Research Institute of Machinery and Electricity

    China

    Homepage

Na Kou,

    Dr. Na Kou

    Big Data and Electronics Engineering Department

    Guizhou University

    China

    Homepage

Shixing Yu,

    Dr. Shixing Yu

    Big Data and Electronics Engineering Department

    Guizhou University

    China

    Homepage

Jubo Guo

    Dr. Jubo Guo

    Jiangnan Design and Research Institute of Machinery and Electricity

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 108, 85-92, 2023
doi:10.2528/PIERL22102902 | Google Scholar

Abstract
A wideband, compact and flexible conformal circularly polarized antenna (CCPA) with ground plane is proposed in this letter. It consists of a polygonal patch, two V-shaped coupling feed lines, a phase-shift transmission line and two layers of metallic ground planes. Two resonant modes are generated by cutting one vertex of the octagonal patch to broaden the operational bandwidth. An L-shaped ground plane is designed on the back of the top substrate. This configuration can obtain a relatively compact phase shifter on the one hand and make the coupling branches and octagonal patch share one ground plane on the bottom, improving the thickness of the antenna which yields wide bandwidth on the other hand. The CCPA can own good performances both in the planar and cylindrical carriers. Under the cylindrical conformal circumstance, the measured |S11| and axial ratio (AR) bandwidth reach 12.05% (5.5 GHz-6.205 GHz) and 8.93% (5.67 GHz-6.2 GHz), respectively. The measured gain is 8.5 dBic with 3 dB gain bandwidth covering the whole operational band.
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Citation
Zhengkun Yang, Na Kou, Shixing Yu, and Jubo Guo, "Circularly Polarized Conformal Antenna with Dual V-Shaped Coupling Feed Lines," Progress In Electromagnetics Research Letters, Vol. 108, 85-92, 2023.
doi:10.2528/PIERL22102902
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