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Electronics
Special Issues
Reconfigurable Antennas
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Reconfigurable 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 (31 January 2018) | Viewed by 27619

Special Issue Editor

Dr. Massimo Donelli

E-Mail Website
Guest Editor
Department of Civil, Environmental and Mechanical Engineering (DICAM), University of Trento, 38123 Trento, Italy
Interests: microwave systems and devices; RFID; modulated scattering techniques (MST); microwave antenna; microwave sensors
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is my great pleasure to announce this Special Issue on “Reconfigurable Antennas”. Modern telecommunications systems, such as radio links, radars, and mobile devices, require antennas that are able to operate in different complex environments. In particular, new mobile smart phones, offer different services that require a high degree of reconfigurability in spite of the limited dimensions of the devices. The 5G generation devices offer, in addition to usual voice and other services of standard previous systems, ultra-broadband Internet connection, IP telephony, mobile web access, gaming services, and other interesting multimedia application (such as high-definition television). In such a framework, the design of a suitable radiating system could play a key role in the design of new generations telecommunication systems. The antenna system for these devices must be light, cheap and able to keep the devices performances to high levels and in any environments. In such a framework, the use of reconfigurable antennas with fully adaptive properties is mandatory to dramatically improve the performances of a telecommunication system. Such kind of antennas are commonly used in several fields of applications, such as airport surveillance, missile detection, and tracking. The objective of this Special Issue is to provide an overview of the current research on “Reconfigurable Antennas”, highlight the latest developments and innovations, and identify new challenges and opportunities of applications.

Suggested topics include, but are not limited to:

  • Fully adaptive array,
  • phased arrays,
  • MIMO antennas,
  • switched beam antennas,
  • multi frequency antennas.

Prof. Massimo Donelli
Guest Editor

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

  • Phased arrays, full adaptive arrays, switched beam antenna, sum/difference arrays, MIMO antenna, reconfigurable antennas, reconfigurable antennas based on parasitic elements, MEMs reconfigurable antennas, multi beams antennas, multi frequency antennas, antenna control algorithms.

Published Papers (5 papers)

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Research

18 pages, 1610 KiB  
Article
A Simple and Efficient Adaptive ISM-Band Antenna Based on a Reconfigurable Optically Driven Parasitic Structure
by Massimo Donelli
Electronics 2018, 7(2), 21; https://doi.org/10.3390/electronics7020021 - 12 Feb 2018
Cited by 4 | Viewed by 4473
Abstract
This paper describes the development and the realization of an adaptive antenna based on a reconfigurable parasitic structure. The geometry of the proposed antenna is circular, and it is composed by an active omni-directional radiator, surrounded by a number of parasitic elements that [...] Read more.
This paper describes the development and the realization of an adaptive antenna based on a reconfigurable parasitic structure. The geometry of the proposed antenna is circular, and it is composed by an active omni-directional radiator, surrounded by a number of parasitic elements that can be optically activated and configured as a director or as a reflector. The optical switches are activated by means of optic fibers in order to avoid electromagnetic perturbations. The optimized structure of the parasitic elements permits a high versatility since each parasitic element can act as reflector or director. Thanks to this structure, integrated with a suitable control software, it is possible to obtain a directive beam pattern that can be opportunely set in order to maximize the coupling with a desired signal and to attenuate the presence of interfering signals. A prototype has been designed, developed and experimentally assessed. The prototype has been integrated with a control software and the whole system has been numerically and experimentally tested. A good agreement between numerical and experimental results has been obtained demonstrating the capabilities of the proposed antenna prototype. Full article
(This article belongs to the Special Issue Reconfigurable Antennas)
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680 KiB  
Article
Experimental Characterization of a Dual-Polarised Parasitic Patch Antenna
by Daniele Pinchera, Mario Lucido, Marco Donald Migliore, Fulvio Schettino and Gaetano Panariello
Electronics 2017, 6(4), 108; https://doi.org/10.3390/electronics6040108 - 14 Dec 2017
Cited by 5 | Viewed by 4431
Abstract
The aim of this paper is to present the experimental characterization of a reconfigurable parasitic patch antenna for Multiple Input Multiple Output (MIMO) applications. The proposed antenna is able to work with two different polarizations, providing separate control of the antenna pattern of [...] Read more.
The aim of this paper is to present the experimental characterization of a reconfigurable parasitic patch antenna for Multiple Input Multiple Output (MIMO) applications. The proposed antenna is able to work with two different polarizations, providing separate control of the antenna pattern of each of the two polarizations. Both numerical and experimental results show the adaptive capabilities of the antenna, proving its effectiveness for MIMO applications. Full article
(This article belongs to the Special Issue Reconfigurable Antennas)
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3554 KiB  
Article
A Pattern-Reconfigurable Slot Antenna for IoT Network Concentrators
by Le Huy Trinh, Trong Nhan Le, Robert Staraj, Fabien Ferrero and Leonardo Lizzi
Electronics 2017, 6(4), 105; https://doi.org/10.3390/electronics6040105 - 29 Nov 2017
Cited by 16 | Viewed by 6206
Abstract
In this paper, a directional pattern-reconfigurable slot antenna at 2.4 GHz is presented. The antenna can provide three evenly-separated directional patterns and one omnidirectional pattern. The proposed solution is fully suitable for the integration in Internet of things (IoT) network base stations to [...] Read more.
In this paper, a directional pattern-reconfigurable slot antenna at 2.4 GHz is presented. The antenna can provide three evenly-separated directional patterns and one omnidirectional pattern. The proposed solution is fully suitable for the integration in Internet of things (IoT) network base stations to increase the communication range and reduce packet collisions. The performance of the proposed antenna is numerically and experimentally assessed. Full article
(This article belongs to the Special Issue Reconfigurable Antennas)
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2013 KiB  
Article
Microstrip Patch Antenna Assisted Compact Dual Band Planar Crossover
by Sreedevi K. Menon
Electronics 2017, 6(4), 74; https://doi.org/10.3390/electronics6040074 - 30 Sep 2017
Cited by 6 | Viewed by 6588
Abstract
In Microwave Monolithic Integrated Circuits, crossovers maintain signal purity when transmission lines overlap with each other. A simple crossover for dual band applications, particularly suitable for the development of smart antennas, is presented in this paper. Derived from conventional patch antenna, the proposed [...] Read more.
In Microwave Monolithic Integrated Circuits, crossovers maintain signal purity when transmission lines overlap with each other. A simple crossover for dual band applications, particularly suitable for the development of smart antennas, is presented in this paper. Derived from conventional patch antenna, the proposed crossovers are easy to design and fabricate, thus reducing the overall complexity. Design is verified for a dual band crossover at 2.4/5.23 GHz on FR4 (Fiberglass Reinforced) epoxy and tested using Keysight E5080 A Vector Network Analyser. The results obtained by simulation and measurement are in agreement. The proposed crossovers find application in a Butler matrix for phased array and smart antenna systems. Full article
(This article belongs to the Special Issue Reconfigurable Antennas)
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1467 KiB  
Article
Antenna Arrays for Line-of-Sight Massive MIMO: Half Wavelength Is Not Enough
by Daniele Pinchera, Marco Donald Migliore, Fulvio Schettino and Gaetano Panariello
Electronics 2017, 6(3), 57; https://doi.org/10.3390/electronics6030057 - 10 Aug 2017
Cited by 31 | Viewed by 5322
Abstract
The aim of this paper is to analyze the array synthesis for 5 G massive MIMO systems in the line-of-sight working condition. The main result of the numerical investigation performed is that non-uniform arrays are the natural choice in this kind of application. [...] Read more.
The aim of this paper is to analyze the array synthesis for 5 G massive MIMO systems in the line-of-sight working condition. The main result of the numerical investigation performed is that non-uniform arrays are the natural choice in this kind of application. In particular, by using non-equispaced arrays, we show that it is possible to achieve a better average condition number of the channel matrix and a significantly higher spectral efficiency. Furthermore, we verify that increasing the array size is beneficial also for circular arrays, and we provide some useful rules-of-thumb for antenna array design for massive MIMO applications. These results are in contrast to the widely-accepted idea in the 5 G massive MIMO literature, in which the half-wavelength linear uniform array is universally adopted. Full article
(This article belongs to the Special Issue Reconfigurable Antennas)
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