Theory Analysis and Realization of Single-/Dual-Port Excitation in Beam-forming Network

Haijun Fan, Xianling Liang, Liang Liu, Junping Geng, Ronghong Jin

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


In this communication, rigorous analysis of dualport excitation in beam-forming network (such as Butler matrix and Rotman lens) are presented. The strategies for selecting two input ports of beam-forming network in dual-port excitation and choosing the phase differences between two input ports are both given. A simple reconfigurable network is presented for realization of the single-/dual-port excitation, which can be easily extended for more input ports in beam-forming network. For verification, a 4 4 Butler matrix with the reconfigurable network and four-element array is designed and fabricated. The measured results show a good agreement with the theoretical analysis.

Original languageEnglish
Pages (from-to)4912-4917
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Issue number9
Early online date8 Jun 2018
Publication statusPublished - Sept 2018


  • absorptive switch
  • Adaptive arrays
  • Beam-forming network
  • Butler matrices
  • Butler matrix
  • dual-port excitation
  • Lenses
  • Phased arrays
  • reconfigurable power divider
  • Rotman lens
  • Switches

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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