Highly miniaturised semi-loop meandered dual-band MIMO antenna system

Syed S. Jehangir, Mohammad S. Sharawi, Atif Shamim

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

A novel dual-band two-element directional multiple-input-multiple-output (MIMO) antenna system is presented with 68% miniaturisation, which is achieved using a semi-loop meandered driven element and a small ground plane. The centre frequency of operation is 2 GHz. The antenna system covers two bands: the telemetry L-band 1.27-1.43 GHz and the global system for mobile communications/long-term evolution band 1.8-2.133 GHz. The simulation and measurement results are in good agreement. The proposed antenna system mimics the quasi-Yagi antenna configuration with a measured front-to-back ratio of around 15 dB at 1.35 GHz and 17 dB at 2 GHz, which is achieved without using a large ground plane, extra metallic structures, multiple reflector elements, or any complex technique. A gain of more than 5 dBi is measured for the single element with a total radiation efficiency of around 85% in both bands. The measured isolation of the proposed MIMO antenna is more than 15 dB with < 0.0785 measured envelope correlation coefficient values in both bands.
Original languageEnglish (US)
Pages (from-to)864-871
Number of pages8
JournalIET Microwaves, Antennas & Propagation
Volume12
Issue number6
DOIs
StatePublished - Dec 5 2017

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