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Structural Mutual Coupling Calibration Experiments of Full Polarization Conformal Phased Array

This article proposed an accurate structural mutual coupling calibration method that can be applied in the pattern synthesis process of full polarization conformal phased array. A cylindrical conformal phased array with twelve differential-fed antennas is modeled and simulated to obtain the radiated fields of each element. Based on the isolated pattern and embedded pattern of every single radiator, the structure mutual coupling matrix (SMCM) for full polarization phased array is deduced. With the original excitations generated by isolated element pattern, excitations are calibrated by the SMCM method proposed in this paper. Experiments of pattern synthesis in full wave simulation have demonstrated the agreements between actual array pattern and desired pattern, thereby confirmed the validity and accuracy of this method.