Smart antenna design and implementation: a simple switched-beam antenna array based on a 8×8 Butler-matrix network

  • Authors:

  • G. A. Adamidis;I. O. Vardiambasis

  • Affiliations:

  • Microwave Communications & Electromagnetic Applications Laboratory, Telecommunications Division, Department of Electronics, Technological Educational Institute of Crete, Chania, Crete, Greece;Microwave Communications & Electromagnetic Applications Laboratory, Telecommunications Division, Department of Electronics, Technological Educational Institute of Crete, Chania, Crete, Greece

  • Venue:
  • ICCOM'06 Proceedings of the 10th WSEAS international conference on Communications
  • Year:
  • 2006

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Abstract

A simple switched-beam array system, capable to produce eight orthogonal uniform beams and some low side-lobe beams, is presented in this paper. The system consists of an eight-element linear phased array and a 8x8 Butler-matrix beam-forming network. System's design and optimization was based on experimental results and computer simulations. A new compact layout topology for the 8×8 Butler-Matrix beam-forming network is presented in this work. The 8×8 Butler-Matrix network has been constructed on a single board surface of an extremely low cost dielectric material, the well-known FR4. Finally, radiation pattern measurements are presented in detail, in order to prove the excellent system's performance.