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Electronics
Special Issues
Application of Volumetric/3D Antennas in/for NF-FF Transformation Techniques
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Application of Volumetric/3D Antennas in/for NF-FF Transformation Techniques

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 May 2022) | Viewed by 2980

Special Issue Editors

Prof. Dr. Francesco D'Agostino

E-Mail Website
Guest Editor
Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
Interests: antenna measurement systems; innovative NF scans; post-processing techniques in antenna measurements; 3D antennas
Prof. Yiannis Vardaxoglou

E-Mail Website
Guest Editor
School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough, Leicestershire, UK
Interests: antennas; microwave metamaterials; 3D printing of RF/microwave devices; antenna and material measurements
Prof. Claudio Gennarelli

E-Mail Website
Guest Editor
Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
Interests: antennas and antenna measurement systems; non-redundant sampling representations and their application to NF-FF transformations; innovative NF scans; post-processing techniques in antenna measurements; electromagnetic scattering

Special Issue Information

Dear Colleagues,  

In modern wireless communication systems, where increasing by a high performance is required, volumetric antennas play a fundamental role, since they can provide superior antenna characteristics with respect to their planar counterparts. For this kind of antennas, accurate measurements are mandatory to verify that they satisfy the design requirements for their proper use both in communication systems and innovative NF facilities.

The scope of this Special Issue is to collect antenna community contributions relevant to the state of the art and/or enhancements on the applications of volumetric antennas in/for NF-FF transformation techniques.

The topics covered by the issue include (but are not limited to):

  • NF-FF transformations
  • Innovative NF acquisition techniques
  • 3D antennas
  • 3D printed antennas
  • Antenna measurements
  • Measurements for 5G antennas
  • Metamaterial based antennas
  • Near-Field measurements
  • Measurements for MIMO antennas
  • Antenna measurements through Unmanned Aerial Vehicle / drone
  • Phaseless measurements
  • Non-redundant NF-FF transformations
  • New instrumentation for testing, data acquisition and processing
  • Measurements for IOT antennas
  • Antenna measurements uncertainty
  • Volumetric aperture efficiency

Prof. Francesco D'Agostino
Prof. Yiannis Vardaxoglou
Prof. Claudio Gennarelli
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

  • NF-FF transformations
  • Antenna measurements
  • Near-Field Measurements
  • 5G measurements
  • Post-processing techniques

Published Papers (2 papers)

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Research

11 pages, 9545 KiB  
Article
Pattern Reconstruction of 3-D Modular Antennas by Means of a Non-Redundant Near-Field Spherical Scan
by Francesco D’Agostino, Flaminio Ferrara, Claudio Gennarelli, Rocco Guerriero and Giovanni Riccio
Electronics 2022, 11(13), 2060; https://doi.org/10.3390/electronics11132060 - 30 Jun 2022
Cited by 1 | Viewed by 1139
Abstract
A very flexible source model is proposed here to reduce the volumetric redundancy when considering the pattern reconstruction of three-dimensional modular antennas by means of a near-field spherical scan using a non-redundant sampling representation. Since this last facet is based on the appropriate [...] Read more.
A very flexible source model is proposed here to reduce the volumetric redundancy when considering the pattern reconstruction of three-dimensional modular antennas by means of a near-field spherical scan using a non-redundant sampling representation. Since this last facet is based on the appropriate choice of antenna model for the evaluation of the optimal parameters to be used, the proposed geometry guaranteed the minimum number of needed samples and then a significant time saved for data acquisition on the near-field spherical grid. Then, an optimal interpolation algorithm used these non-redundant samples for an accurate evaluation of the near-field data that were usable in the classical near-field to far-field transformation. The reliability and accuracy of the reconstruction process were proven by means of numerical tests. These last showed a remarkable reduction (about 53%) in needed near-field samples as compared to those required by the classical near-field to far-field transformation and this was achieved without any loss in accuracy. Full article
(This article belongs to the Special Issue Application of Volumetric/3D Antennas in/for NF-FF Transformation Techniques)
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14 pages, 1707 KiB  
Article
Accurate Reconstruction of the Radiation of Sparse Sources from a Small Set of Near-Field Measurements by Means of a Smooth-Weighted Norm for Cluster-Sparsity Problems
by Daniele Pinchera and Marco Donald Migliore
Electronics 2021, 10(22), 2854; https://doi.org/10.3390/electronics10222854 - 19 Nov 2021
Cited by 3 | Viewed by 1098
Abstract
The aim of this contribution is to present an approach that allows to improve the quality of the reconstruction of the far-field from a small number of measured samples by means of sparse recovery using a relatively coarse grid for source positions (with [...] Read more.
The aim of this contribution is to present an approach that allows to improve the quality of the reconstruction of the far-field from a small number of measured samples by means of sparse recovery using a relatively coarse grid for source positions (with sample spacing of the order of λ/8) compared to the grid usually required. In particular, the iterative method proposed employs a smooth-weighted constrained minimization, that guarantees a better probability of correct estimate of the sparse sources and an improved quality in the reconstruction, with a similar computational effort respect to the standard ℓ1 re-weighted minimization approach. Full article
(This article belongs to the Special Issue Application of Volumetric/3D Antennas in/for NF-FF Transformation Techniques)
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