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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2020-10-20
Design of a Long Linear Helical Subarray for High-Power Cylindrical Conformal Array Antenna
By
Jianqiong Zhang,

    Professor Jianqiong Zhang

    School of Physical Science and Technology

    Southwest Jiaotong University

    China

    Homepage

Pengyou Huang,

    Dr. Pengyou Huang

    School of Physical Science and Technology

    Southwest Jiaotong University

    China

    Homepage

Xiang-Qiang Li,

    Dr. Xiang-Qiang Li

    School of Physical Science and Technology

    Southwest Jiaotong University

    China

    Homepage

Qingfeng Wang

    Dr. Qingfeng Wang

    School of Physical Science and Technology

    Southwest Jiaotong University

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 97, 189-200, 2020
doi:10.2528/PIERM20041302 | Google Scholar

Abstract
A Ku-band long linear helical subarray (LLHS) for a high-power cylindrical conformal array antenna has been developed. The LLHS consists of 80 helical antennas can be used to constitute conformal array of cylindrical surface. Through the research on the embedded probe structure, the adjustment of the coupling ability of different types of unit probes and the sealing method of the whole feeding, the problems of large feed reflection, the uneven coupling amount of the unit probe in the rectangular waveguide system are solved, and the LLHS which can be used in the high-power conformal array is realized. The LLHS which is 52.35λ length can obtain 25.2 dB gain, 2.31 dB axis ratio, 90% aperture efficiency, -15.65 dB reflection at 12.5 GHz, and the reflection is lower than -14 dB during 12-13 dB. In addition, it could handle a pulse power of 166 MW under vacuum condition.
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Citation
Jianqiong Zhang, Pengyou Huang, Xiang-Qiang Li, and Qingfeng Wang, "Design of a Long Linear Helical Subarray for High-Power Cylindrical Conformal Array Antenna," Progress In Electromagnetics Research M, Vol. 97, 189-200, 2020.
doi:10.2528/PIERM20041302
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