Vol. 33
Latest Volume
All Volumes
PIERM 114 [2022] PIERM 113 [2022] PIERM 112 [2022] PIERM 111 [2022] PIERM 110 [2022] PIERM 109 [2022] PIERM 108 [2022] PIERM 107 [2022] PIERM 106 [2021] PIERM 105 [2021] PIERM 104 [2021] PIERM 103 [2021] PIERM 102 [2021] PIERM 101 [2021] PIERM 100 [2021] PIERM 99 [2021] PIERM 98 [2020] PIERM 97 [2020] PIERM 96 [2020] PIERM 95 [2020] PIERM 94 [2020] PIERM 93 [2020] PIERM 92 [2020] PIERM 91 [2020] PIERM 90 [2020] PIERM 89 [2020] PIERM 88 [2020] PIERM 87 [2019] PIERM 86 [2019] PIERM 85 [2019] PIERM 84 [2019] PIERM 83 [2019] PIERM 82 [2019] PIERM 81 [2019] PIERM 80 [2019] PIERM 79 [2019] PIERM 78 [2019] PIERM 77 [2019] PIERM 76 [2018] PIERM 75 [2018] PIERM 74 [2018] PIERM 73 [2018] PIERM 72 [2018] PIERM 71 [2018] PIERM 70 [2018] PIERM 69 [2018] PIERM 68 [2018] PIERM 67 [2018] PIERM 66 [2018] PIERM 65 [2018] PIERM 64 [2018] PIERM 63 [2018] PIERM 62 [2017] PIERM 61 [2017] PIERM 60 [2017] PIERM 59 [2017] PIERM 58 [2017] PIERM 57 [2017] PIERM 56 [2017] PIERM 55 [2017] PIERM 54 [2017] PIERM 53 [2017] PIERM 52 [2016] PIERM 51 [2016] PIERM 50 [2016] PIERM 49 [2016] PIERM 48 [2016] PIERM 47 [2016] PIERM 46 [2016] PIERM 45 [2016] PIERM 44 [2015] PIERM 43 [2015] PIERM 42 [2015] PIERM 41 [2015] PIERM 40 [2014] PIERM 39 [2014] PIERM 38 [2014] PIERM 37 [2014] PIERM 36 [2014] PIERM 35 [2014] PIERM 34 [2014] PIERM 33 [2013] PIERM 32 [2013] PIERM 31 [2013] PIERM 30 [2013] PIERM 29 [2013] PIERM 28 [2013] PIERM 27 [2012] PIERM 26 [2012] PIERM 25 [2012] PIERM 24 [2012] PIERM 23 [2012] PIERM 22 [2012] PIERM 21 [2011] PIERM 20 [2011] PIERM 19 [2011] PIERM 18 [2011] PIERM 17 [2011] PIERM 16 [2011] PIERM 14 [2010] PIERM 13 [2010] PIERM 12 [2010] PIERM 11 [2010] PIERM 10 [2009] PIERM 9 [2009] PIERM 8 [2009] PIERM 7 [2009] PIERM 6 [2009] PIERM 5 [2008] PIERM 4 [2008] PIERM 3 [2008] PIERM 2 [2008] PIERM 1 [2008]
2013-10-31
Performance of a Wide Angle and Wide Band Nulling Method for Phased Arrays
By
Progress In Electromagnetics Research M, Vol. 33, 239-249, 2013
Abstract
In most practical applications of the phased array antennas, the generated nulls toward the interfering signals should have enough depth and width to accommodate fluctuations in frequency and direction of the interferer. Due to these fluctuations, the nulls can be easily deviated from its desired angular locations in the traditional adaptive nulling arrays since the nulls are very sharp and sensitive. An innovative technique for wide nulling arrays has been recently presented. The wide nulls can be introduced by setting properly the excitation coefficients of the two edge elements of the antenna array. In this paper, the effect of frequency fluctuation on the nulling performance is investigated. By generating wide and deep nulls toward and around the interference directions, the proposed method provides robustness against frequency fluctuation. Simulation results in realistic situations with frequency fluctuation are presented to illustrate the performance of the proposed technique. Comparisons with the standard fully adaptive nulling array are shown.
Citation
Khalil Sayidmarie Jafar Ramadhan Mohammed , "Performance of a Wide Angle and Wide Band Nulling Method for Phased Arrays," Progress In Electromagnetics Research M, Vol. 33, 239-249, 2013.
doi:10.2528/PIERM13100603
http://www.jpier.org/PIERM/pier.php?paper=13100603
References

1. Applebaum, S. P., Adaptive arrays and Propagat., Vol. 24, 585-598, IEEE Trans. on Antennas, 1976.

2. Steyskal, H., R. A. Shore, and R. L. Haupt, Methods for null control and their effects on the radiation pattern, Vol. 34, 404-409, IEEE Trans. on Antennas and Propagat., 1986.

3. Lu, Y. and B. K. Yeo, "Adaptive wide null steering for digital beam forming array with the complex coded genetic algorithm," IEEE Int. Conf. on Phased Array Systems and Technology, 557-560, 2000.

4. Haupt , R. L., "Phase-only adaptive nulling with a genetic algorithm," IEEE Trans. on Antennas and Propagat., Vol. 45, No. 6, 1009-1015, 1997.
doi:10.1109/8.585749

5. Li, W.-T., X.-W. Shi, L. Xu, and Y.-Q. Hei, "Improved GA and PSO culled hybrid algorithm for antenna array pattern synthesis," Progress In Electromagnetics Research, Vol. 80, 461-476, 2008.
doi:10.2528/PIER07121503

6. Morabito, A. F. and P. Rocca, "Optimal synthesis of sum and difference patterns with arbitrary sidelobes subject to common excitations constraints," IEEE Antennas and Wireless Propagation Letters, Vol. 10, 623-626, 2010.
doi:10.1109/LAWP.2010.2053832

7. Mangoud, M. A.-A. and H. M. Elragal, "Antenna array pattern synthesis and wide null control using enhanced particle swarm optimization," Progress In Electromagnetics Research B, Vol. 17, 1-14, 2009.
doi:10.2528/PIERB09070205

8. Mouhamadou, M., P. Vaudon, and M. Rammal, "Smart antenna array patterns synthesis: Null steering and multi-user beamforming by phase control ," Progress In Electromagnetics Research, Vol. 60, 95-106, 2006.
doi:10.2528/PIER05112801

9. Mohammed, J. R., "Phased array antenna with ultra-low sidelobes," Electronics Letters, Vol. 49, No. 17, 18-19, 2013.
doi:10.1049/el.2013.1642

10. Compton, R. T., Adaptive Antennas: Concepts and Performance, Prentice-Hall, Philadelphia, PA, 1987.

11. Monzingo, R. A., R. L. Haupt, and T. W. Miller, Introduction to Adaptive Arrays, 2nd Ed., SciTech Publishing, 2011.

12. Van Veen, B. D. and K. M. Buckley, "Beam forming: A versatile approach to spatial filtering," IEEE ASSP Mag., Vol. 5, No. 2, 4-24, 1988.
doi:10.1109/53.665

13. Morgan, D., "Partially adaptive array techniques," IEEE Trans. on Antennas and Propagat., Vol. 26, No. 6, 823-833, 1978.
doi:10.1109/TAP.1978.1141952

14. Haupt, R. L., "Adaptive nulling with weight constraints," Progress In Electromagnetics Research B, Vol. 26, 23-38, 2010.
doi:10.2528/PIERB10070804

15. Mohammed, J. R. and K. H. Sayidmarie, "A new technique for obtaining wide-angular nulling in the sum and difference patterns of monopulse antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 11, 1242-1245, 2012.

16. Balanis, C. A., Modern Antenna Handbook, John Wiley, 2008.
doi:10.1002/9780470294154