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Electronics
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Microwave Subsystems and Wireless Propagation
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Microwave Subsystems and Wireless Propagation

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 December 2022) | Viewed by 6332

Special Issue Editors

Prof. Dr. Esmat A. Abdallah

E-Mail Website
Guest Editor
Electronics Research Institute, Cairo Governorate, Egypt
Interests: microwave circuit designs; planar antenna systems, and nonreciprocal ferrite devices, and recently on EBG structures, UWB components and antenna and RFID systems, IoT, Energy Harvesting
Prof. Dr. Haruichi Kanaya

E-Mail Website
Guest Editor
Department of Electronics, Kyushu University, Fukuoka 819-0395, Japan
Interests: radio-frequency integrated circuits (RFIC); microwave communication device; UWB and multi-band antennas
Special Issues, Collections and Topics in MDPI journals
Dr. Mohamed M. Mansour

E-Mail Website
Guest Editor
Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, Japan
Interests: energy harvesting; wireless power transfer; rectifier; rectenna; antenna; impedance matching circuit; nonlinear circuit modeling; metamaterials; resonators; filters; passive microwave components
Prof. Ayman Mohamed Fekri Elboushi

E-Mail Website
Guest Editor
Electronics Research Institute (ERI), Microstrip Department, Giza, Dokki, Egypt
Interests: microwave; UWB and millimeter wave detection / imaging; FMCW radar systems; passive radar systems; ground penetrating radar (GPR); RFID antennas (readers and tags); analog and digital beamforming; through wall hidden target detection; time domain reflectometry (TDR); mono-static and bi-static radar
Dr. Anwer Sayed Abdelhameed Ahmed

E-Mail Website
Guest Editor
Center for Northeast Asian Studies, Tohoku University, Sendai, Japan
Interests: microwave imaging using GPR; GB-SAR; MIMO radar
Dr. Xavier Le Polozec

E-Mail Website
Guest Editor
Engagement Practice IP Transport, Ericsson, 91348 Massy, France
Interests: microwave communication systems; radio communication systems; microwave detection; microwave power conversion; energy harvesting; RF & microwave propagation;youth research; RF circuit simulation

Special Issue Information

Dear Colleagues,

The emerging of microwave subsystems and wireless electromagnetic charging has led to new applications in various domains, ranging from medical, consumer electronics, autonomous vehicles, imaging systems, IoT, and civilians to military applications. The demand to improve and develop the existing microwave components is essential to achieve reliable and robust systems.

The prospective issue covers a broad spectrum of innovations in multi-disciplinary areas that have a great impact not only in academic fields, but also in industrial tracks. To meet the future requests for the modern microwave applications, significant advancements should be achieved in developing outstanding RF circuit topologies. The anticipated outcome of this issue is to improve many RF circuit aspects such as miniaturization, performance enhancement, power efficiency, and fabrication cost effectiveness.   

The current Special Issue invites all authors around the globe to share their latest results and findings in, but not limited to, the following topics:

  • Wireless power transfer
  • RF wireless energy harvesting
  • Wideband and multiband RF-DC rectifier
  • 5G and 6G millimeter wave antennas
  • Remote sensing and radars
  • Microwave imaging systems for biomedical applications
  • MIMO and metamaterial systems
  • Application of machine learning to various microwave components
  • Passive microwave circuits

Prof. Dr. Esmat A. Abdallah
Prof. Dr. Haruichi Kanaya
Dr. Mohamed M. Mansour
Prof. Ayman Mohamed Fekri Elboushi
Dr. Anwer Sayed Abdelhameed Ahmed
Dr. Xavier Le Polozec
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

  • Wireless power transfer 
  • RF wireless energy harvesting 
  • RF-DC rectifier 
  • 5G and 6G 
  • Remote sensing 
  • MIMO 
  • Metamaterials 
  • Machine learning 
  • Passive microwave circuits

Published Papers (3 papers)

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Research

14 pages, 4771 KiB  
Article
A 10 GHz Compact Balun with Common Inductor on CMOS Process
by Chatrpol Pakasiri, Jian-Long Xu and Sen Wang
Electronics 2023, 12(2), 468; https://doi.org/10.3390/electronics12020468 - 16 Jan 2023
Cited by 1 | Viewed by 1506
Abstract
This paper presents a compact balun with a common inductor design. The design used Wilkinson-type balun topology with modified lumped transmission lines and a common inductor to realize circuit size reduction on a lossy CMOS process. Measurements of the prototype chip had a [...] Read more.
This paper presents a compact balun with a common inductor design. The design used Wilkinson-type balun topology with modified lumped transmission lines and a common inductor to realize circuit size reduction on a lossy CMOS process. Measurements of the prototype chip had a reflection coefficient below 17.8 dB at all ports, an insertion loss of 1.98 dB, and an isolation of 16.8 dB. The chip size was only 0.025λ0 × 0.034λ0. Full article
(This article belongs to the Special Issue Microwave Subsystems and Wireless Propagation)
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17 pages, 3076 KiB  
Article
Atmospheric Ducting Interference on DAB, DAB+ Radio in Eastern Mediterranean
by Antonios Constantinides, Saam Najat and Haris Haralambous
Electronics 2022, 11(24), 4183; https://doi.org/10.3390/electronics11244183 - 14 Dec 2022
Cited by 1 | Viewed by 1629
Abstract
A serious problem affecting the local radio industry in Cyprus is radio interference from the Middle East. This problem is especially acute on the highway along the coast during the summer months because interference degrades the sound quality in vehicle receivers due to [...] Read more.
A serious problem affecting the local radio industry in Cyprus is radio interference from the Middle East. This problem is especially acute on the highway along the coast during the summer months because interference degrades the sound quality in vehicle receivers due to chirping noise, hissing, fading and distortion. During the last decade the issue was explored by monitoring the field strength intensity of unwanted signals with respect to atmospheric conditions that excacerbate interference. According to the research outcomes presented in this paper, severe interference occurs due to “Tropospheric Ducting”, i.e., radio energy becomes trapped between two boundaries in the lower layers of Earth’s atmosphere. Thereby, this phenomenon acts as a waveguide that favors radio waves to propagate beyond the horizon with very strong field strength intensity where under certain atmospheric conditions exceeding the expected free space theoretical value. Because the commercial Band FM is already oversaturated for years, it was considered important to expand this research to explore the impact of interference on the new digital DAB, DAB+ radio, that will soon be launched in Cyprus, as it is discussed below. Full article
(This article belongs to the Special Issue Microwave Subsystems and Wireless Propagation)
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12 pages, 2557 KiB  
Article
A Procedure to Design Feasible Dual Band Matching Networks with Minimum Complexity
by Alessandro DiCarlofelice, Emidio DiGiampaolo and Piero Tognolatti
Electronics 2022, 11(21), 3569; https://doi.org/10.3390/electronics11213569 - 01 Nov 2022
Viewed by 1901
Abstract
Many applications in communication systems require the development of dual band matching networks. A new method to design dual band matching networks was shown, which resorts to closed form equations based on transmission line theory, and has three particular characteristics: (i) it permits [...] Read more.
Many applications in communication systems require the development of dual band matching networks. A new method to design dual band matching networks was shown, which resorts to closed form equations based on transmission line theory, and has three particular characteristics: (i) it permits the minimum number of elements (two at most three) in the network; (ii) the topology of the network is not fixed but modular; and (iii) it is able to find multiple solutions within a predefined range of feasible characteristic impedances for the elements of the network. An extensive comparison with the results shown in the literature has been reported showing the improvements introduced by the proposed method. Numerical simulations and experimental results confirm the effectiveness of the method. Full article
(This article belongs to the Special Issue Microwave Subsystems and Wireless Propagation)
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