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Advanced Multi-Band Antennas and Millimeter-Wave Components
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Advanced Multi-Band Antennas and Millimeter-Wave Components

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Sensor Networks".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 6611

Special Issue Editor

Dr. Emilio Arnieri

E-Mail Website
Guest Editor
Department of Computer, Modeling, Electronics, and Systems Engineering, University of Calabria, 87036 Arcavacata, Italy
Interests: antennas; microwaves; electromagnetics; phased arrays; polarizers

Special Issue Information

Dear Colleagues,

Wireless communication is one of the fastest-growing fields of communication industry. This constant evolution fosters the antenna community to design new radiating systems capable of satisfying the market demands. Conventional antennas designed in a wireless communication system will operate in one frequency band. However, there is a need to design multiband or wideband antennas and components which can operate at multiple frequencies. In modern wireless communication systems, multiband antennas have derived rapidly increasing attention in which the downward compatibility and the roaming capability among multi-standards are demanded.

The objective of the present special issue is to present the latest advances in the field of multiband antennas and components for wireless communications.

Potential topics include, but are not limited to, multi-band antennas and also to multi-band millimeter wave components (like multiband polarizers, transmittarray, reflectarrays, frequency selective surfaces etc.).

Dr. Emilio Arnieri
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. Sensors 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 2600 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

  • Dual Band
  • Multi Band Antennas
  • Dual Band Antennas
  • Multifrequency Antennas
  • multiband antenna array design
  • multiband operation
  • dual-band satellite communication

Published Papers (3 papers)

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Research

10 pages, 4802 KiB  
Communication
Dual-Band CPW Graphene Antenna for Smart Cities and IoT Applications
by Nathaniel Morales-Centla, Richard Torrealba-Melendez, Edna Iliana Tamariz-Flores, Mario López-López, Cesar Augusto Arriaga-Arriaga, Jesus M. Munoz-Pacheco and Victor R. Gonzalez-Diaz
Sensors 2022, 22(15), 5634; https://doi.org/10.3390/s22155634 - 28 Jul 2022
Cited by 6 | Viewed by 1847
Abstract
In this paper, a dual-band graphene coplanar waveguide antenna is designed for smart cities and internet of things applications. A graphene film is chosen as the conductive material for the radiation patches and ground plane with a thickness of 240 μm and an [...] Read more.
In this paper, a dual-band graphene coplanar waveguide antenna is designed for smart cities and internet of things applications. A graphene film is chosen as the conductive material for the radiation patches and ground plane with a thickness of 240 μm and an electric conductivity of 3.5 × 105 S/m. The dielectric is glass with a dielectric permittivity of 6 and a thickness of 2 mm. The implementation of the antenna on glass permits the integration of the antenna in smart cities and IoT applications. This antenna is based on two trapezoidal patches that generate the dual-band behavior. The overall dimensions of the antenna are 30 mm × 30 mm × 2 mm. The reflection coefficient, gain, and radiation patterns were measured and compared with the simulations. The antenna covers two frequency bands; the lower band covers the 2.45 GHz ISM band, and the upper band range covers from 4 to 7 GHz. Full article
(This article belongs to the Special Issue Advanced Multi-Band Antennas and Millimeter-Wave Components)
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11 pages, 3095 KiB  
Communication
Dual-Frequency Linear-to-Circular Polarization Converter for Ka-Band Applications
by Francesco Greco and Emilio Arnieri
Sensors 2022, 22(6), 2187; https://doi.org/10.3390/s22062187 - 11 Mar 2022
Cited by 8 | Viewed by 2415
Abstract
A dual-band linear-to-circular planar polarization converter based on a multilayer printed circuit board (PCB) is proposed and demonstrated. Each cell of the periodic surface is formed by six substrate layers separated by five foam spacers. The three top layers are identical and contain [...] Read more.
A dual-band linear-to-circular planar polarization converter based on a multilayer printed circuit board (PCB) is proposed and demonstrated. Each cell of the periodic surface is formed by six substrate layers separated by five foam spacers. The three top layers are identical and contain an ‘I’-type strip, while the three layers on the bottom side are realized with three identical Jerusalem crosses (JC). A linearly polarized (LP) wave tilted 45° relative to the x- and y-axis of the converter is used to illuminate the polarizer. In this configuration, right-handed circularly polarized (RHCP) waves are generated at the Ka-band while left-handed circularly polarized (LHCP) waves are generated at the K-band. An equivalent circuit model based on transmission lines is proposed and used to design the polarizer together with full-wave simulations. The simulated/measured axial ratio (AR) remains below 3 dB in the bands 19.4–21.8 GHz (12.5%) and 27.9–30.5 GHz (8.7%) with an insertion loss better than 0.5 dB. Full article
(This article belongs to the Special Issue Advanced Multi-Band Antennas and Millimeter-Wave Components)
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16 pages, 7590 KiB  
Article
Directive Multiband Antenna Based on Rectangular Loop Array and Dumbbell-Shaped Slot Radiator
by Jose Alfredo Tirado-Mendez, Hildeberto Jardon-Aguilar, Ruben Flores-Leal, Luis Alberto Vasquez-Toledo, Arturo Rangel-Merino, Rricardo Marcelin-Jimenez, Enrique Rodriguez-Colina and Michael Pascoe-Chalke
Sensors 2021, 21(21), 7082; https://doi.org/10.3390/s21217082 - 26 Oct 2021
Cited by 1 | Viewed by 1564
Abstract
In this article, a combination of rectangular loop array and slot radiator for multiband applications is presented. The antenna is configured by arranging, concentrically, a set of rectangular loop radiators excited by electromagnetic coupling provided by a dumbbell slot. The size of the [...] Read more.
In this article, a combination of rectangular loop array and slot radiator for multiband applications is presented. The antenna is configured by arranging, concentrically, a set of rectangular loop radiators excited by electromagnetic coupling provided by a dumbbell slot. The size of the loops is calculated to obtain the desired resonant frequencies, which are almost independent of the adjacent rings. The exciting slot is designed to operate in a wideband frequency range to cover the upper desired resonance. In addition, to obtain directive radiation patterns, a reflector shaped like a box is introduced, giving a stable gain, radiation pattern shape, and port matching at the selected frequencies. The configuration presents great results, since to the authors’ knowledge, even a similar configuration given in the open literature presents some disadvantages compared to this one; moreover, not just any structure can be employed as the resonating elements, obtaining multiband behavior at the same time. Full article
(This article belongs to the Special Issue Advanced Multi-Band Antennas and Millimeter-Wave Components)
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