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Four ports wideband drop-shaped slot antenna for MIMO applications

Author

Listed:
  • José Alfredo Tirado-Méndez
  • Hildeberto Jardón-Aguilar
  • Arturo Rangel-Merino
  • Luis Alberto Vasquez-Toledo
  • Ricardo Gómez-Villanueva

Abstract

In this paper, a proposal of a four-port antenna for MIMO applications is presented with high interport isolation. The isolation among elements is implemented by limiting the surface current distribution of each radiator by placing them on different substrate layers, leading to a size optimization. The array is implemented by four drop-shaped slot radiators. The antenna performs from 1.7 to 7.2 GHz, presents a very low Envelope Correlation Coefficient (ECC), reaching values of 0.0025 tops, and a stable Total Active Reflection Coefficient (TARC) over the entire operational bandwidth. These parameters demonstrate the feasibility of the antenna for MIMO systems. The peak average gain is 5 dB, and the port isolation between adjacent radiators, S12 and S14, and opposite radiators, S13 and S24 are below −20 dB, reaching values even less than −30 dB in some bands without adding extra structures, avoiding an increment in the total area.

Suggested Citation

  • José Alfredo Tirado-Méndez & Hildeberto Jardón-Aguilar & Arturo Rangel-Merino & Luis Alberto Vasquez-Toledo & Ricardo Gómez-Villanueva, 2020. "Four ports wideband drop-shaped slot antenna for MIMO applications," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 34(9), pages 1159-1179, June.
    • Handle: RePEc:taf:tewaxx:v:34:y:2020:i:9:p:1159-1179
    DOI: 10.1080/09205071.2019.1710578
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