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2022-08-19
Array Pattern Restoration Under Defective Elements
By
Progress In Electromagnetics Research C, Vol. 123, 17-26, 2022
Abstract
The defective array elements which are unavoidable due to the long full-time antenna system operation directly affect its radiation pattern, sidelobe level (SLL), directivity, and the system performance. Therefore, reducing these undesirable effects is a main interest in designing such arrays in practice. In this paper, a partially compensating method based on the genetic optimization algorithm (GA) is proposed to mainly reduce those undesirable effects of the defected elements. Unlike the existing fully compensating methods where all of their active elements were optimized to compensate for the effects of the defected elements, the proposed method optimizes the excitation weights of some optimally selected active-elements. Thus, the whole array elements do not need to be redesigned again as in the case of the fully compensating methods. This greatly simplifies the design implementation of these arrays. Moreover, a very large defective percentage ranging from 5% up to 50% has been considered to demonstrate the effectiveness of the proposed method. Furthermore, the drawback effects of the randomly failing elements at the array center have been highlighted, and some suggestions have been provided.
Citation
Jafar Ramadhan Mohammed Ahmed Jameel Abdulqader , "Array Pattern Restoration Under Defective Elements," Progress In Electromagnetics Research C, Vol. 123, 17-26, 2022.
doi:10.2528/PIERC22061101
http://www.jpier.org/PIERC/pier.php?paper=22061101
References

1. Anselmi, N., L. Manica, P. Rocca, and A. Massa, "Tolerance analysis of antenna arrays through interval arithmetic," IEEE Trans. Antennas Propagat., Vol. 61, No. 11, 5496-5507, Nov. 2013, doi: 10.1109/TAP.2013.2276927.
doi:10.1109/TAP.2013.2276927

2. Peters, T. J., "A conjugate gradient-based algorithm to minimize the sidelobe level of planar arrays with element failures," IEEE Trans. Antennas Propagat., Vol. 39, 1497-1504, Oct. 1991.

3. Yeo, B.-K. and Y. Lu, "Array failure correction with a genetic algorithm," IEEE Trans. Antennas Propagat., Vol. 47, No. 5, May 1999.

4. Grewal, N. S., M. Rattan, and M. Patterh, "A linear antenna array failure correction using firefly algorithm," Progress In Electromagnetics Research M, Vol. 27, 241-254, 2012.
doi:10.2528/PIERM12101903

5. Acharya, O. P., A. Patnaik, and S. N. Sinha, "Limits of compensation in a failed antenna array," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 24, No. 6, 635-645, 2014.
doi:10.1002/mmce.20807

6. Rodriguez, J. A., F. Ares, E. Morcno, and G. Franceschetti, "Genetic algorithm procedure for linear array failure correction," Electronics Letters, Vol. 36, No. 3, Feb. 2000.
doi:10.1049/el:20000236

7. Mailloux, R. J., "Array failure correction with a digitally beamformed array," IEEE Trans. Antennas Propagat., Vol. 44, 1543-1550, Dec. 1996.
doi:10.1109/8.546240

8. Keizer, W. P. M. N., "Element failure correction for a large monopulse phased array antenna with active amplitude weighting," IEEE Trans. Antennas Propagat., Vol. 55, No. 8, Aug. 2007.
doi:10.1109/TAP.2007.902008

9. Mohammed, J. R., "Thinning a subset of selected elements for null steering using binary genetic algorithm," Progress In Electromagnetics Research M, Vol. 67, 147-157, 2018.
doi:10.2528/PIERM18021604

10. Mohammed, J. R., "A method for thinning useless elements in the planar antenna arrays," Progress In Electromagnetics Research Letters, Vol. 97, 105-113, 2021.
doi:10.2528/PIERL21022104

11. Balanis, C. A., Antenna Theory, Analysis and Design, 4th Ed., Wiley, 2016.

12. Mohammed, J. R., "Optimal null steering method in uniformly excited equally spaced linear array by optimizing two edge elements," Electronics Letters, Vol. 53, No. 13, 835-837, Jun. 2017.
doi:10.1049/el.2017.1405