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http://dx.doi.org/10.5515/KJKIEES.2017.28.6.478

Compensation Algorithm of Beamforming Error for Wideband Conformal Array Antenna  

Yoon, Ho-Joon (Department of Electronic Convergence Engineering, Kwangwoon University)
Lee, Kang-In (Department of Electronic Convergence Engineering, Kwangwoon University)
Nam, Sang-Wook (Department of Electrical and Computer Engineering, Seoul National University)
Chung, Young-Seek (Department of Electronic Convergence Engineering, Kwangwoon University)
Yoon, Young-Joong (School of Electrical & Electronic Engineering, Yonsei University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.28, no.6, 2017 , pp. 478-486 More about this Journal
Abstract
In this paper, we propose an algorithm for the wideband beamforming in a conformal phased array antenna by compensating the errors. For the wideband beamforming, we used the True Time Delay(TTD), which was fabricated on the RF circuit board to obtain long delay lines. Beamforming errors in the conformal array antenna are the mutual coupling between the array elements, the dispersive error in the TTD circuit, and the quantization error by the digital control. We apply the compensation algorithm to the conformal phased array antenna of wideband 2~4 GHz, and verify the usefulness by comparing the results with the experiment results.
Keywords
Conformal Array; Beamforming; True Time Delay; Error Compensation; Mutual Coupling; Quantization Error;
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