Low-profile and closely spaced four-element mimo antenna for wireless body area networks

Issa Elfergani*, Amjad Iqbal, Chemseddine Zebiri, Abdul Basir, Jonathan Rodriguez, Maryam Sajedin, Artur de Oliveira Pereira, Widad Mshwat, Raed Abd-Alhameed, Sadiq Ullah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
12 Downloads (Pure)


A compact four-element multiple-input multiple output (MIMO) antenna is proposed for medical applications operating at a 2.4 GHz ISM band. The proposed MIMO design occupies an overall volume of 26 mm × 26 mm × 0.8 mm. This antenna exhibits a good impedance matching at the operating frequency of the ISM band, whose performance attributes include: isolation around 25 dB, envelope correlation coefficient (ECC) less than 0.02, average channel capacity loss (CCL) less than 0.3 bits/s/Hz and diversity gain (DG) of around 10 dB. The average peak realized gain of the four-element MIMO antenna is 2.4 dBi with more than 77 % radiation efficiency at the frequency of interest (ISM 2.4 GHz). The compact volume and adequate bandwidth, as well as the good achieved gain, make this antenna a strong candidate for bio-medical wearable applications.

Original languageEnglish
Article number258
Issue number2
Publication statusPublished - 4 Feb 2020


  • Channel capacity loss (CCL)
  • Envelope correlation coefficient (ECC)
  • ISM 2.4 GHz
  • Isolation
  • MIMO antenna


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