Mutual coupling compensation in receiving arrays and its implementation on software defined radios
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KünyeKhan, S., Sajjad, H., Özdemir, M. K. ve Arvas, E. (2020). Mutual coupling compensation in receiving arrays and its implementation on software defined radios. Applied Computational Electromagnetics Society Journal, 35(11), 1433-1434. https://dx.doi.org/10.47037/2020.ACES.J.351185
Mutual coupling is compensated in a four element uniform linear receiving array using software defined radios. Direction of arrival (DoA) is estimated in real-time for the array with spacing d=lambda/4. The decoupling matrix was measured using a VNA for only one incident angle. After compensation the error in DoA estimation was reduced to 5%. Comparing the DoA results with d=lambda/2 spaced Uniform Linear Array (ULA), 1.2% error was observed. Although, the experiment was performed indoors with a low SNR, the results show a substantial improvement in the estimated DoA after compensation.