Wireless Personal Communications

, Volume 63, Issue 2, pp 501–513 | Cite as

Design of Linear Phased Array for Interference Suppression Using Array Polynomial Method and Particle Swarm Optimization

  • D. I. Abu-Al-Nadi
  • T. H. Ismail
  • H. Al-Tous
  • M. J. Mismar


In this work, a linear phased array pattern design with null steering is achieved using the array polynomial technique and the Particle Swarm Optimization (PSO) algorithm. The null steering for interference suppression is obtained by controlling some of the roots on the Schelkunoff’s unit circle while keeping the roots responsible for the main beam unchanged. The rest of the roots are controlled to minimize the Side Lobe Level (SLL) of the array pattern using the PSO algorithm. It has been demonstrated that this technique achieved more than 50% reduction in the parameters needed to be optimized compared with the conventional complex coefficients optimization techniques. Consequently, the fitness function is only responsible for the SLL as the prescribed controlled nulls and the mainbeam characteristics are solved analytically. The simulated results show the effectiveness of the proposed technique.


Linear phased arrays Null steering Array polynomial Pattern synthesis PSO 


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Copyright information

© Springer Science+Business Media, LLC. 2010

Authors and Affiliations

  • D. I. Abu-Al-Nadi
    • 1
  • T. H. Ismail
    • 2
  • H. Al-Tous
    • 2
  • M. J. Mismar
    • 3
  1. 1.Department of Electrical EngineeringUniversity of JordanAmmanJordan
  2. 2.Department of Electronics and CommunicationsAl-Ahliyya Amman UniversityAmmanJordan
  3. 3.Department of Electronics EngineeringPrincess Sumaya University for TechnologyAmmanJordan

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