Vol. 47

Front:[PDF file] Back:[PDF file]
Latest Volume
All Volumes
All Issues

In-Situ Monitoring Method for Direction Finding Antennas

By Lama Ghattas, Serge Bories, Dominique Picard, Philippe Pouliguen, and Patrick Potier
Progress In Electromagnetics Research M, Vol. 47, 99-110, 2016


Antenna arrays for direction finding (DF) are usually designed and tested in controlled environments such as anechoic chambers. However, antenna pattern may change significantly when antennas are placed in their operational environment. In such perturbing close context, the antennas calibration validity becomes a major issue which can lead to DF performance degradation and costly recalibration process. This paper presents an innovative design and implementation of a non-disturbing solution for quasi-real time antenna monitoring. The proposed system is based on optically modulated scattering (OMS) technique. Its capacity to detect the presence of various types of obstacles, which perturb significantly the antenna radiation pattern, is evaluated. A relation between monitoring mode and DF mode measurement signals is established. Finally, a design and sizing of the overall system is proposed.


Lama Ghattas, Serge Bories, Dominique Picard, Philippe Pouliguen, and Patrick Potier, "In-Situ Monitoring Method for Direction Finding Antennas," Progress In Electromagnetics Research M, Vol. 47, 99-110, 2016.


    1. Tunker, T. and B. Friedlander, Classical and Modern Direction-of-Arrival Estimation, Academic Press, 2009.

    2. Bellion, A., et al., "Calibration of direction finding antennas in complex environment," Colloque URSI, Chicago, USA, 2008.

    3. Gupta, I. J., et al., "An experimental study of antenna array calibration," IEEE Trans. Ant. and Propag., Vol. 51, No. 3, 664-667, 2003.

    4. Infante, L., S. D. Quintili, and C. Romanucci, "A real-time diagnostic tool for phased array antenna systems," IEEE International Symposium on Phased Array Systems & Technology, 725-730, 2013.

    5. Zarbouti, D., et al., "The effective radiation pattern concept for realistic performance estimation of LTE wireless systems," International Journal of Ant. and Propag., 2013.

    6. Bolomey, J. C. and F. E. Gardiol, Engineering Applications of the Modulated Scatterer Technique, Artech House, 2001.

    7. Cullen, A. L. and J. C. Parr, "A new perturbation method for measuring microwave fields in free space," Proceedings of the IEE - Part B: Radio and Electronic Engineering, Vol. 102, No. 6, 836-844, 1955.

    8. Lao, R. R., et al., "Optically modulated scatterer technique for radiation pattern measurement of small antennas and RFID tags," Antennas and Wireless Propagation Letters, Vol. 8, 76-79, 2009.

    9. Pursula, P., et al., "Antenna effective aperture measurement with backscattering modulation," IEEE Trans. Ant. and Propag., Vol. 55, No. 10, 2836-2843, 2007.

    10. Liang, W., et al., "The use of an optically modulated scatterer to measure the performance of microwave electromagnetic wave absorber," 2002 3rd International Symposium on Electromagnetic Compatibility, 404-407, 2002.

    11. Choi, J. H., B. Y. Park, and S. O. Park, "Source location estimation using phaseless measurements with the modulated scattering technique for indoor wireless environments," Progress In Electromagnetics Research C, Vol. 14, 197-212, 2010.

    12. Ostadrahimi, M., et al., "Enhancement of near- eld probing in a microwave tomography system," Antennas and Propagation Society International Symposium (APSURSI), 1-2, 2012.

    13. Memarzadeh-Tehran, H., J. Laurin, and R. Kashyap, "Optically modulated probe for precision near-field measurements," IEEE Trans. Inst. and Meas., Vol. 59, No. 10, 2755-2762, 2010.

    14. Ghattas, L., et al., "Benefit of a monitoring system in-situ for direction finding antennas," 35th AMTA, 2013.

    15. Fikioris, G. and C. A. Valagiannopoulos, "Input admittances arising from explicit solutions to integral equations for infinite-length dipole antennas," Progress In Electromagnetics Research, Vol. 55, 285-306, 2005.

    16. Fikioris, G. and T. T. Wu, "On the application of numerical methods to Hallen's equation," IEEE Trans. Ant. and Propag., Vol. 49, No. 3, 383-392, 2001.

    17. Bellion, A., et al., "Application de la borne de Cramer Rao dans le cas des systmes antennaires complexes de goniomtrie," Colloque GRETSI, 1053-1056, 2007.

    18. http://www.enablence.com/media/mediamanager/pdf/32-enablence-datasheet-ocsd-pd-pin1310-1550-pdcs30t-18ghz-ingaas.pdf.

    19. Ghattas, L., et al., "Broadband optically modulated scatterer probe for near field measurements," 35th AMTA, 2013.

    20. Pursula, P., et al., "Backscattering-based measurement of reactive antenna input impedance," IEEE Trans. Ant. and Propag., Vol. 56, No. 2, 469-474, 2008.

    21. Bories, S., "Small antennas impedance and gain characterization using backscattering measurements," Proceedings of EuCAP, 1-5, 2010.

    22. Yaghjian, A. D., "An overview of near-field antenna measurements," IEEE Trans. Ant. and Propag., Vol. 34, No. 1, 30-45, 1986.