Vol. 103

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2021-06-15

Eigenbeam Analysis of Singly Curved Conformal Antenna Array

By Irfanullah, Hina Munsif, and Ali Imram Najam
Progress In Electromagnetics Research M, Vol. 103, 27-36, 2021
doi:10.2528/PIERM21051204

Abstract

In this paper, eigen analysis of the correlation matrix for an 8-element singly curved conformal antenna array with plane wave(s) incident at different angles is presented. The signal eigenvectors derived from the correlation matrix are used as the array weights to generate peak beams toward the directions of the signals, and the noise eigenvectors derived from the correlation matrix are used as the array weights to generate nulls in the directions of the signals. A 1 x 8 microstrip patch antenna array is embedded on an anhedral corner type structure with different amount of surface deformation to analyse the array pattern. The patch antenna elements in the conformal array are excited with attenuators (for amplitude control) and phase shifters (for phase control) to implement the complex signal eigenvectors practically. The simulated eigenbeams using conformal antenna array are in good agreement with the measurement results. Furthermore, the effects of surface deformation on gain and beamwidth of array main beam is discussed. The proposed eigenbeam conformal antenna array can be used in smart and adaptive array applications.

Citation


Irfanullah, Hina Munsif, and Ali Imram Najam, "Eigenbeam Analysis of Singly Curved Conformal Antenna Array," Progress In Electromagnetics Research M, Vol. 103, 27-36, 2021.
doi:10.2528/PIERM21051204
http://jpier.org/PIERM/pier.php?paper=21051204

References


    1. Josefsson, L. and P. Persson, Conformal Array Antenna Theory and Design, Wiley-IEEE Press, USA, 2006.
    doi:10.1002/047178012X

    2. Hansen, R. C., Phased Array Antennas, 2nd Ed., John Wiley and Sons, New York, 2010.

    3. Haupt, R. L., Antenna Arrays, A Computational Approach, Wiley-IEEE Press, USA, 2010.
    doi:10.1002/9780470937464

    4. Salonen, P., Y. Rahmat-Samii, M. Schaffrath, M. Kivikoski, and , "Effect of textile materials on wearable antenna performance: A case study of GPS antennas," IEEE International Symposium on Antennas and Propagation, Monterey, USA, June 2004.

    5. Kennedy, T. F., P. W. Fink, A. W. Chu, N. J. Champagne, G. Y. Lin, and M. A. Khayat, "Body-worn E-textile antennas: The good, the low-mass, the conformal," IEEE Transactions on Antennas and Propagation, Vol. 57, 910-918, 2009.
    doi:10.1109/TAP.2009.2014602

    6. Kuang, Y., L. Yao, S.-H. Yu, S. Tan, X.-J. Fan, and Y.-P. Qiut, "Design and electromagnetic properties of a conformal ultra wideband antenna integrated in three-dimensional woven fabrics," Polymers MDPI, Vol. 10, 1-10, 2018.

    7. Semkin, V., A. Bisognin, M. Kyr¨o, V.-M. Kolmonen, C. Luxey, F. Ferrero, F. Devillers, and A. V. Raisanen, "Conformal antenna array for millimeter-wave communications: Performance evaluation," International Journal of Microwave and Wireless Technologies, Vol. 9, 241-247, 2017.
    doi:10.1017/S1759078715001282

    8. Pourya, A. and S. R. Seydnejad, "Broadband adaptive beamforming of conformal arrays for wireless communications based on generalized sidelobe canceller," Wireless Personal Communications, Vol. 96, 1131-1143, 2017.
    doi:10.1007/s11277-017-4228-x

    9. Schippers, H., P. Knott, T. Deloues, P. Lacomme, and M. R. Scherbarth, "Vibrating antennas and compensation techniques research in NATO/RTO/SET 087/RTG 50," IEEE Aerospace Conference, Big Sky, USA, 2004.

    10. Loecker, C., P. Knott, R. Sekora, and S. Algermissen, "Antenna design for a conformal antenna array demonstrator," 6th European Conference on Antennas and Propagation (EuCAP), Prague, Czech Republic, March 2012.

    11. Knott, P., et al., "Performances of conformal and planar arrays," NATO Symposium on Smart Antennas, Proceedings, P13.1-P13.10, 2003.

    12. Sharawi, M. S., D. N. Aloi, and O. A. Rawashdeh, "Design and implementation of embedded printed antenna arrays in small UAV wing structures," IEEE Transactions on Antennas and Propagation, Vol. 58, 2531-2538, 2010.
    doi:10.1109/TAP.2010.2050440

    13. Anagnostou, D. and M. Iskander, "Adaptive flexible antenna array system for deformable wing surfaces," IEEE Aerospace Conference, Big Sky, USA, March 2015.

    14. Braaten, B. D., M. A. Aziz, S. Roy, S. Nariyal, Irfanullah, N. F. Chamberlain, M. T. Reich, and D. E. Anagnostou, "A self-adapting flexible (SELFLEX) antenna array for changing conformal surface applications," IEEE Transactions on Antennas and Propagation, Vol. 61, 655-665, 2013.
    doi:10.1109/TAP.2012.2226227

    15. Irfanullah, S. Khattak and B. D. Braaten, "Improvement of the broadside radiation pattern of a conformal antenna array using amplitude tapering," Applied Computational Electromagnetic Society (ACES) Journal, Vol. 32, 511-516, 2017.

    16. Irfanullah, S. Khattak and B. D. Braaten, "Broadside pattern correction techniques for conformal antenna arrays," Advances in Array Optimization, E. Aksoy, Chapter 5, IntechOpen, London, UK, 2020.

    17. Knott, P., "Antenna design and beamforming for a conformal antenna array demonstrator," IEEE Aerospace Conference, Big Sky, USA, July 2006.

    18. Schippers, H., J. Verpoorte, P. Jorna, A. Hulzinga, A. Meijerink, C. Roeloffzen, R. G. Heideman, A. Leinse, and M. Wintels, "Conformal phased array with beam forming for airborne satellite communication," 2008 International ITG Workshop on Smart Antennas, Vienna, Austria, July 2008.

    19. Sun, D., R. Shen, and X. Yan, "A broadband conformal phased array antenna on spherical surface," International Journal of Antennas and Propagation, 1-5, 2014.

    20. Kumar, R., P. Kumar, and M. V. Kartikeyan, "Wide scanned electronically steered conformal active phased array antenna for Ku-band SATCOM," International Journal of Microwave and Wireless Technologies, Vol. 11, 376-381, 2019.
    doi:10.1017/S1759078718001599

    21. Bouwmeester, W., "Conformal phased array for disturb," MS Thesis, Delft University of Technology, 2020.