Special Issue "State-of-the-Art of Smart MIMO Antennas"

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microwave and Wireless Communications".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 1868

Special Issue Editors

Electrical and Electronics Engineering Department, Izmir Katip Celebi University, Izmir, Turkey
Interests: analytical/numerical design and modeling of active/passive wireless components in the micro/millimeter wave frequencies especially in the field of RF energy harvesting systems; machine learning based smart RF components and IoT compatible microwave sensors
1. Department of Electrical, Electronic and Communication Engineering & Institute for Smart Cities (ISC), Public University of Navarre, 31006 Pamplona, Spain
2. Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey 64849, Mexico
Interests: wireless networks; performance evaluation; distributed systems; context-aware environments; IoT; next-generation wireless systems
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Special Issue Information

Dear Colleagues,

After the technological implementation  of the first version of the fifth-generation (5G) new radio (NR) standard through massive multiple-input multiple-output (MIMO) systems, there are still many challenges remaining to overcome in 6G and beyond with the target performance improvements in terms of  higher data rates, lower latencies, better energy efficiency, and improved robustness. Multiple antenna technologies are, therefore, important key components to addressing the technical challenges in almost all recent wireless generations. Alternative to the conventional phased antenna arrays employed for diversity enhancement to improve the sensitivity to one signal, MIMO systems are composed of antenna arrays jointly at both transmiting and receiving sides in a communication link to spatially multiplex signals over multipath or near-field channels.

MIMO systems are continuously evolving with the novel antenna design strategies as a research topic in addition to the enhanced massive MIMO techniques and array architectures with high potential solution for the system requirements in 6G and beyond. This Special Issue aims to highlight recent research on multiple antenna technologies.

Potential research topics include, but are not limited to:

  • MIMO channel modeling theory;
  • Artifical material based compact MIMO antenna design;
  • Multi-band/wideband MIMO antenna design;
  • Machine learning assisted MIMO antenna design;
  • Smart reconfigurable MIMO antennas;
  • Implantable/Wearable MIMO antennas;
  • Optimum MIMO antenna selection;
  • Antenna mutual coupling improvement techniques;
  • Lens antenna array and intelligent reflecting surface design for mmwave massive MIMO systems.

Dr. Merih Palandoken
Prof. Dr. Francisco Falcone
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • metamaterials based MIMO antennas
  • reconfigurable MIMO antennas
  • smart MIMO antennas
  • MIMO channel modelling
  • massive MIMO
  • surrogate modelling of MIMO antennas
  • implantable MIMO antennas

Published Papers (1 paper)

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A New Generation of Fast and Low-Memory Smart Digital/Geometrical Beamforming MIMO Antenna
Electronics 2023, 12(7), 1733; https://doi.org/10.3390/electronics12071733 - 05 Apr 2023
Viewed by 1178
Smart multiple-input multiple-output (MIMO) antennas with advanced signal processing algorithms are necessary in future wireless networks, such as 6G and beyond, for accurate space division multiplexing and beamforming. Such a MIMO antenna will yield better network coverage and tracking. This paper presents a [...] Read more.
Smart multiple-input multiple-output (MIMO) antennas with advanced signal processing algorithms are necessary in future wireless networks, such as 6G and beyond, for accurate space division multiplexing and beamforming. Such a MIMO antenna will yield better network coverage and tracking. This paper presents a smart MIMO antenna configuration with a highly innovative beamforming technique using several nonlinear configurations of dipole arrays. Phase delay factors are optimized at the transmitter to form a single beam and then to steer the beam towards a particular direction. A number of phase shifters are added in order to obtain maximum directional gain. This configuration also significantly increases the power gain of the MIMO antenna at a low cost and with operational simplicity. The paper also demonstrates how the beam width and beamsteering can be effectively controlled. Wolfram Mathematica software was used to generate the three-dimensional radiated beam patterns of the transmitter antenna. There are two approaches to configure the receiver antenna. In the first approach, the received signal magnitude is maximized by aligning the contribution of all elements of the receiver antenna to the same phase. With this approach, the field gain of the proposed system is 25.52 (14.07 dBi). The signal processing gain at the receiver is 64 (18.06 dBi). Therefore, the overall power gain for this proposed new digital/geometrical smart MIMO system is 32.13 dBi. In the second approach, the receiver beam is directed towards the transmitter by optimizing the phase delay coefficients of the receiver. Here, the overall gain of the system is found to be 134.56 (21.28 dBi). Even though the system gain in the second approach is lower, it has the advantage of low interference at the receiver side. Full article
(This article belongs to the Special Issue State-of-the-Art of Smart MIMO Antennas)
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