Design and performance aspects of an adaptive cylindrical beamforming array

Theodoros N. Kaifas, John N. Sahalos

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


In this article, the design of a cylindrical beamforming array (CBA) is presented. The array is conformed over a ring of a conducting circular cylinder. From the total number of elements, M, of the array, a subset of N successive elements is enabled each time. The selection of the subset is based on the minimization of the angle between its broadside direction and the direction of arrival (DOA) of the signal of interest (SOI). Furthermore, by adaptively combining the outputs of the active subarray, the gain of the system is maximized. The cylindrical beamforming array is integrated into the CDMA acquisition phase, where a joint process of code acquisition and smart-antenna adaptation is applied. The array is implemented for the uplink of a base-station receiver of a wireless communications system. A detailed justification and a performance evaluation under various simulation scenarios, which include integration into spatial and two-dimensional rake receivers, are also presented.

Original languageEnglish
Article number6202512
Pages (from-to)51-65
Number of pages15
JournalIEEE Antennas and Propagation Magazine
Issue number1
Publication statusPublished - 2012


  • Adaptive arrays
  • array signal processing
  • cylindrical arrays
  • direction of arrival estimation
  • diversity methods
  • land mobile radio cellular systems
  • land mobile radio equipment
  • rake receivers
  • spread spectrum communications


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