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Electronics
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Microwave and Millimeter-Wave Antennas: Latest Advances and Prospects
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Microwave and Millimeter-Wave Antennas: Latest Advances and Prospects

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

Deadline for manuscript submissions: closed (30 July 2023) | Viewed by 6962

Special Issue Editor

Dr. Niamat Hussain

E-Mail Website
Guest Editor
Department of Smart Device Engineering, Sejong University, Seoul 05006, Republic of Korea
Interests: antenna engineering; wireless power transfer; bioelectromagnetic (SAR reduction in mobile antennas, study of electromagnetic effects of human health)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Antennas are the essential part of any wireless communication system. To improve connectivity in modern wireless communications, antennas with improved performance should be designed to comply with the changing standards of wireless communication systems. Moreover, 5G communication systems use both microwave bands and millimeter wave bands to meet the demands of increased data rates with low latency as well as wide coverage. Now, it is time to look for new microwave and millimeter-wave antenna designs and technologies that meet the standards of 5G and 6G communication systems. The main objective of this Special Issue is to report the latest advances and prospects in microwave and millimeter-wave antennas. Authors of both theoretical and application-oriented papers presenting emerging antenna technologies are welcome to submit their manuscripts. We invite researchers from academia and industry to submit high-quality research articles and critical surveys or reviews papers.

Dr. Niamat Hussain
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

  • 5G antennas
  • mobile antennas
  • IoT antennas
  • flexible electronics
  • wearable antennas
  • microwave antennas
  • millimeter wave antennas
  • terahertz antennas
  • wireless propagation

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Published Papers (2 papers)

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Research

13 pages, 5825 KiB  
Article
Circularly Polarized MIMO Antenna Based on Microstrip Patch and Metasurface Structures
by Huy-Hung Tran, Tung The-Lam Nguyen and Tuyen Danh Pham
Electronics 2023, 12(2), 384; https://doi.org/10.3390/electronics12020384 - 12 Jan 2023
Cited by 5 | Viewed by 3316
Abstract
This paper shows a two-element multiple-input–multiple-output (MIMO) circularly polarized antenna. The proposed design achieves polarization diversity by using two conventional truncated corner square patches. Since the operating bandwidth of the conventional design is extremely narrow, a metasurface is utilized for bandwidth enhancement. In [...] Read more.
This paper shows a two-element multiple-input–multiple-output (MIMO) circularly polarized antenna. The proposed design achieves polarization diversity by using two conventional truncated corner square patches. Since the operating bandwidth of the conventional design is extremely narrow, a metasurface is utilized for bandwidth enhancement. In the open literature, several MS-based MIMO antennas have been reported. However, these designs can achieve high isolation with wide spacing between the MIMO elements. For the proposed design, the configuration of the MS is modified so that high isolation can be obtained with smaller element spacing. The design concept is verified by measurements on a fabricated prototype. The measured operating bandwidth (BW), which is an overlap between −10 dB impedance and 3-dB axial ration BWs, is from 5.0 to 5.6 GHz (11.3%). Across this band, the isolation is always higher than 20 dB and the realized gain is higher than 4.4 dBi. Full article
(This article belongs to the Special Issue Microwave and Millimeter-Wave Antennas: Latest Advances and Prospects)
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19 pages, 5666 KiB  
Article
An Efficient Slotted Waveguide Antenna System Integrated with Inside-Grooves and Modified Gaussian Slot Distribution
by Asif Mehmood Khan, Muhammad Mansoor Ahmed, Umair Rafique, Arslan Kiyani and Syed Muzahir Abbas
Electronics 2022, 11(18), 2948; https://doi.org/10.3390/electronics11182948 - 17 Sep 2022
Cited by 2 | Viewed by 2700
Abstract
In this work, an efficient slotted waveguide antenna (SWA) system is designed for S-band high power microwave (HPM) applications. The designed SWA comprises of 10-slot elements placed on the broad wall of SWA with a modified Gaussian distribution (MGD), integrated with two inside-grooves [...] Read more.
In this work, an efficient slotted waveguide antenna (SWA) system is designed for S-band high power microwave (HPM) applications. The designed SWA comprises of 10-slot elements placed on the broad wall of SWA with a modified Gaussian distribution (MGD), integrated with two inside-grooves and a Gaussian dielectric radome of high-density polyethylene (HDPE) material. The inside-grooves are introduced to suppress the surface current on the waveguide, which results in high gain as well as sidelobe level (SLL) reduction in the E-plane. The MGD controls the SLLs, and the unique Gaussian profile shape radome offers constant radiation characteristics. The proposed antenna system, within existing size constraints, offers a high gain of 20.1 dBi in conjunction with a high-power handling capability of greater than 100 MW. The designed SWA system has compact dimensions of 8.46λ0 × 1.38λ0 × 1.50λ0, with SLLs of −20 dB and −22 dB in the H- and E-plane, respectively. The HPM antenna system, radiating at 3 GHz, is fabricated on aluminium material using the milling process. The simulated SWA system has good agreement with measured results. Moreover, the proposed SWA system offers clear advantages in terms of its robustness, design simplicity, high power handling capability, and high gain. Full article
(This article belongs to the Special Issue Microwave and Millimeter-Wave Antennas: Latest Advances and Prospects)
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