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A switched-beam microstrip antenna array with miniaturized butler matrix network

Wei Nie*, Yong Fan, Sha Luo, Yongxin Guo

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

In this article, a switched-beam microstrip antenna array with miniaturized butler matrix network is proposed and experimentally verified. The miniaturized butler matrix network is implemented with the stub-loaded transmission lines (SLTLs). By adopting the proposed SLTLs to equivalently substitute the quarter-wavelength transmission lines of the couplers and crossovers in the traditional butler matrix network, the circuit area is immediately reduced without loss of performance. To prove the effectiveness of this substitution, the theoretical analysis is given. The proposed butler matrix only takes 45% of the area of a conventional one. Finally, a microstrip antenna array with the miniaturized butler matrix is fabricated, and the proposed design is validated by the measurement results. © 2015 Wiley Periodicals, Inc.
Original languageEnglish
Pages (from-to)841-845
JournalMicrowave and Optical Technology Letters
Volume57
Issue number4
DOIs
Publication statusPublished - 1 Apr 2015
Externally publishedYes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

  • antenna array
  • butler matrix network
  • miniaturization
  • switched-beam

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