A switched-beam millimeter-wave array with MIMO configuration for 5G applications

Muhammad Ikram*, M. S. Sharawi, K. Klionovski, A. Shamim

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


In this work, a switched-beam 2-element multiple-input multiple-output (MIMO) antenna system is proposed at mm-wave bands for 5G applications. The antenna system consists of a 4 × 4 connected slot antennas for each MIMO element forming the connected antenna array (CAA). A feed network based on a Butler matrix is used to excite the CAA, in addition to steer the beam at different locations which enhance the diversity performances. The mm-wave MIMO antenna system operates at 28 GHz with at least −10 dB measured bandwidth of 830 MHz (27.4 GHZ–28.23 GHz). It is fabricated on a commercially available RO3003 substrate with dielectric constant of 3.3 and height of 0.13 mm, respectively. The dimensions of the board are equal to 150 mm3 × 100 mm3 × 0.13 mm3. The proposed design is compact, low profile, and suitable for future 5G-enabled tablet PCs.

Original languageEnglish (US)
Pages (from-to)915-920
Number of pages6
JournalMicrowave and Optical Technology Letters
Issue number4
StatePublished - Apr 2018


  • 5G
  • Butler matrix
  • CAA
  • MIMO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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