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2015-10-01
Mutual Coupling Calibration for L-Shaped Microstrip Antenna Array with Accurate 2-d Direction of Arrival Estimation
By
Jianhui Bao,

    Dr. Jianhui Bao

    Science and Technology on Antenna and Microwave Laboratory

    Xidian University

    China

    Homepage

Qiulin Huang,

    Professor Qiulin Huang

    School of Electronic Engineering

    Xidian University

    China

    Homepage

Xin Huai Wang,

    Dr. Xin Huai Wang

    National Key Laboratory of Antennas and Microwave Technology

    Xidian University

    China

    Homepage

Peng Liu,

    Dr. Peng Liu

    Space Star Technology Co., Ltd

    China

    Homepage

Xiao-Wei Shi

    Professor Xiao-Wei Shi

    School of Electronics Engineering

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 57, 9-16, 2015
doi:10.2528/PIERL15052401 | Google Scholar

Abstract
An improved mutual coupling calibration approach based on the element pattern reconstruction (EPR) method is proposed in this paper. Compared to previous calibration methods in which the calibration is carried out in the entire space, the space angle ranges to be calibrated in this method is partitioned according to the interested directions. Through the partition of the space angle region, the angle ranges to calibrate are narrowed, and thus more accurate calibration matrix can be obtained in corresponding angle regions. With the employment of the calibration matrix on 2-D DOA estimation, more effective mutual coupling calibration and more accurate DOA estimations are achieved by alternate iteration in each angle region. The validity of this method is verified by an L-shaped microstrip antenna array, and the performance of mutual coupling calibration is presented by the better accuracy in 2-D DOA estimations.
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Citation
Jianhui Bao, Qiulin Huang, Xin Huai Wang, Peng Liu, and Xiao-Wei Shi, "Mutual Coupling Calibration for L-Shaped Microstrip Antenna Array with Accurate 2-d Direction of Arrival Estimation," Progress In Electromagnetics Research Letters, Vol. 57, 9-16, 2015.
doi:10.2528/PIERL15052401
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