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Electronics
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Recent Advances in MIMO and Array Antennas
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Recent Advances in MIMO and Array Antennas

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

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 6116

Special Issue Editors

Dr. Sultan Shoaib

E-Mail Website
Guest Editor
Faculty of Arts, Computing and Engineering (FACE), Wrexham University, Wrexham, Wales LL11 2AW, UK
Interests: antennas
Special Issues, Collections and Topics in MDPI journals
Dr. Masood Ur Rehman

E-Mail Website
Guest Editor
James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
Interests: compact antenna design; radiowave propagation and channel characterization; satellite navigation system antennas in cluttered environments; electromagnetic wave interaction with the human body; body-centric wireless networks and sensors; remote healthcare technology; mmWave and nanocommunications for body-centric networks and D2D/H2H communications
Special Issues, Collections and Topics in MDPI journals
Dr. Djuradj Budimir

E-Mail Website
Guest Editor
Department of Computer Science and Engineering, University of Westminster, London GB W1W 6UW, UK
Interests: microwaves; rf; antennas; wireless communications; filters; design of circuits from RF through uWave/mmWave to terahertz frequencies for 4G, 5G, B5G, and 6G wireless communications; WLAN; WPT; wireless sensors; Internet of Things (IoT); biomedical applications
Special Issues, Collections and Topics in MDPI journals
Dr. Akram Alomainy

E-Mail Website
Guest Editor
School of Electronic Engineering and Computer Science, Faculty of Science and Engineering, Queen Mary University of London, Mile End Road, London E1 4NS, UK
Interests: basics of antennae and electromagnetism, from megastructures and metasurfaces to novel applications in telerobotics, cognitive radio, wearable electronics, nanoscale networks, healthcare, and bioengineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Modern communication devices need specialized components and equipment to operate at full efficiency. An antenna is a vital part of any wireless communication system, and it directly affects the efficiency and performance of the system. Due to the introduction of 5G and beyond 5G, traditional antenna designs are becoming outdated, and thus, a need for intelligent antenna systems has emerged. Multiple-antenna technologies have now outperformed single-antenna technologies. Multiple-antenna technologies include array antennas and multiple-input–multiple-output (MIMO) antennas. Array antennas have the capability to provide a high gain while maintaining a wide bandwidth, whereas MIMO antennas have the capability to provide more communication links within the same channel without the need for additional bandwidth or transmission power. Array and MIMO antennas are the most important types of antennas which are mandatory for achieving a high data rate multimedia communication through indoor wireless routers or simply on-the-go. The application of such antennas is not limited to cellular communication, and it includes many other areas, such as smart cars, e-health, autonomous vehicles, smart grids and implantable electronics, etc.

This Special Issue, titled “Recent Advances in Multiple-Input–Multiple-Output and Array Antennas”, focuses on publishing work on new MIMO and array antennas. The aim of this issue is to promote modern and novel antenna designs to meet the requirements of compact and high-performance wireless terminals. This issue focuses on applications that involve antennas for implantable and portable electronics. The topics of interest include but are not limited to:

  • Antennas for millimeter wave communication;
  • Antennas for 5G communication;
  • Antennas for future 6G communication;
  • Antennas for terahertz communication;
  • Antennas for vehicle-to-vehicle communication;
  • Antennas for autonomous cars;
  • Antennas for implantable sensors;
  • Antennas for biomedical applications;
  • Antennas for 5G mobile handsets and other portable terminals;
  • Adaptive beamforming antennas;
  • Phased array antennas;
  • Liquid antennas;
  • Reconfigurable antennas

Dr. Sultan Shoaib
Dr. Masood Ur Rehman
Dr. Djuradj Budimir
Dr. Akram Alomainy
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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 2400 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.

Keywords

  • Antennas for millimeter wave communication
  • Antennas for 5G communication
  • Antennas for future 6G communication
  • Antennas for terahertz communication
  • Antennas for vehicle-to-vehicle communication
  • Antennas for autonomous cars
  • Antennas for implantable sensors
  • Antennas for biomedical applications
  • Antennas for 5G mobile handsets and other portable terminals
  • Adaptive beamforming antennas
  • Phased array antennas
  • Liquid antennas
  • Reconfigurable antennas

Published Papers (3 papers)

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Research

20 pages, 8170 KiB  
Article
An Advanced Array Configuration Antenna Based on Mutual Coupling Reduction
by Salaheddine Aourik, Ahmed Errkik, Aziz Oukaira, Dhaou Said, Jamal Zbitou and Ahmed Lakhssassi
Electronics 2023, 12(7), 1707; https://doi.org/10.3390/electronics12071707 - 04 Apr 2023
Cited by 1 | Viewed by 1626
Abstract
In this work, a microstrip antenna array that consists of 16 elements is designed at a frequency of 28 GHz, with a dimension of 35 mm × 33.5 mm and an operational bandwidth of 27.7–28.3 GHz. The idea is putting two antenna arrays [...] Read more.
In this work, a microstrip antenna array that consists of 16 elements is designed at a frequency of 28 GHz, with a dimension of 35 mm × 33.5 mm and an operational bandwidth of 27.7–28.3 GHz. The idea is putting two antenna arrays next to each other on the same substrate and ground plane, as well as minimizing the overall size. This work presents a mutual coupling reduction for two arrays and studies the performance of the antennas through the suppression of surface wave propagation in a given frequency range. It proposed a new configuration for an artificial magnetic conductor (AMC) created by microstrip technology placed at a closed distance (0.3λ0) between the two antenna arrays. The improvement in the isolation between the two adjacent antenna arrays was studied according to the H-plane with a periodic unit cell of the AMC. The mutual coupling reduces to −40.0 dB at the operation frequency and isolation of 17 dB. The antenna array is also characterized by a good envelope correlation coefficient (ECC). The CST Microwave Studio electromagnetic solver was used to design, improve, and miniaturize the proposed configuration. Full article
(This article belongs to the Special Issue Recent Advances in MIMO and Array Antennas)
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15 pages, 7176 KiB  
Article
Design and Analysis of an Eight-Port Dual-Polarized High-Efficiency Shared-Radiator MIMO Antenna for 5G Mobile Devices
by Rui Shao, Xiaomin Chen, Junlin Wang and Xin Wang
Electronics 2022, 11(10), 1628; https://doi.org/10.3390/electronics11101628 - 20 May 2022
Cited by 4 | Viewed by 1660
Abstract
Nowadays, the MIMO can achieve fifth generation (5G) ultra-high capacity, but it is a great challenge for the smartphone antenna to achieve good isolation, high efficiency, and other performance in limited space. The paper designed and completed an eight-port dual-polarized high-efficiency shared-radiator antenna [...] Read more.
Nowadays, the MIMO can achieve fifth generation (5G) ultra-high capacity, but it is a great challenge for the smartphone antenna to achieve good isolation, high efficiency, and other performance in limited space. The paper designed and completed an eight-port dual-polarized high-efficiency shared-radiator antenna working in 3.5 GHz (3.4–3.6 GHz) for 5G mobile devices. The two antenna elements are regarded as one building block and share one radiator, and the size of one radiator is 17.1 × 17.1 mm2 (0.02 λ × 0.02 λ, where λ presents the free-space wavelength at 3.5 GHz). The MIMO system consists of four radiators, and the edge-to-edge distance between the radiators on the short side is 31.9 mm (0.038 λ), and the total size of the MIMO antenna system is 150 × 80 × 1.6 mm3 (0.176 λ × 0.094 λ × 0.0019 λ). The antenna uses an orthogonal placement of feed lines to produce dual polarization in the MIMO system, resulting in high isolation without introducing other decoupling structures. In addition, the reason for the high efficiency of the antenna is explained by the common mode (CM) and differential model (DM). Finally, the simulated results are as follows: the isolation is 14 dB; the total efficiency (TE) is 75–85%; the envelope correlation coefficient (ECC) is lower than 0.065; and the gain is 6.5 dB. The prototype is fabricated and tested: the isolation is better than 17 dB, the range of the measured TE is 60–75%, and the ECC is lower than 0.045. In addition, the influence of the human body model on the antenna are also discussed. Overall, the proposed MIMO antenna has a shared radiator with high isolation and high TE, and is more suitable for the current stage of 5G MIMO antenna technology. More importantly, the planar structure block is very simple to build and easy to fabricate on the substrate. Full article
(This article belongs to the Special Issue Recent Advances in MIMO and Array Antennas)
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10 pages, 3774 KiB  
Article
Array Antenna for Wireless Access Points and Futuristic Healthcare Devices
by Riqza Yasmin Khattak, Qasim Ahmed, Sultan Shoaib and Maryam Hafeez
Electronics 2022, 11(8), 1226; https://doi.org/10.3390/electronics11081226 - 12 Apr 2022
Cited by 1 | Viewed by 1577
Abstract
A design of a low-profile and printed array antenna for wireless access points and futuristic healthcare devices is presented in this manuscript. The antenna design is derived from a printed dipole configuration and is optimized using an empirical design approach to achieve enhanced [...] Read more.
A design of a low-profile and printed array antenna for wireless access points and futuristic healthcare devices is presented in this manuscript. The antenna design is derived from a printed dipole configuration and is optimized using an empirical design approach to achieve enhanced bandwidth, gain and efficiency performances. The antenna is printed on Rogers RT-5880 laminate with a permittivity of 2.2 and a thickness of 0.508 mm. The overall footprint of the design covers 27.5 × 39.1 mm2 on a substrate of 36 × 42 mm2. Results have shown that the design covers a wide bandwidth of more than 7 GHz, making it capable of covering 40.5–42.5 GHz, 42.5–43.5 GHz, 45.5–47 GHz and 47–47.2 GHz 5G bands as recommended in WRC-15. The design shows an average gain of 11.5 dB and an average efficiency of 84% over the entire bandwidth. The simulation and measurement results mostly agree, with minor disparities which might have been caused due to substrate tolerance and testing setup. Full article
(This article belongs to the Special Issue Recent Advances in MIMO and Array Antennas)
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