Special Issue "Advances in Analytical-Numerical Techniques for Planar Microwave Circuits and Microstrip Antennas"

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: 25 March 2022.

Special Issue Editor

Dr. Mario Lucido
E-Mail Website1 Website2 Website3 Website4 Website5
Guest Editor
Department of Electrical and Information Engineering “Maurizio Scarano”, University of Cassino and Southern Lazio, Via G. Di Biasio 43, 03043 Cassino (FR), Italy
Interests: analytical-numerical methods for electromagnetics; electromagnetic diffraction and scattering; waveguide and optical waveguide; microwave circuits and antennas

Special Issue Information

Dear Colleagues,

Microwave technology is essential for the realization of a wide number of nowadays indispensable applications ranging from the commercial to the industrial sectors, devised for healthcare or for defense systems. Modern planar microwave circuits and microstrip antennas are particularly attractive to satisfy the increased demand for wireless communications due to their low manufacturing costs, light weight, low profile, and suitability to be used as elements in microwave and millimeter-wave integrated circuits. The modelling of such kind of structures is nontrivial because distributed elements are predominantly involved. Moreover, the dielectric and conductive losses, the dielectric substrates inhomogeneity and/or anisotropy, the metallization thickness and cross-sectional shape, etc. cannot, in general, be neglected when a highly accurate characterization is required. As a result, the ability to design and optimize more and more sophisticated planar microwave structures goes hand in hand with the development of increasingly efficient computer aided design tools.

This Special Issue is focused on the latest results in the development of highly efficient analytical-numerical techniques to face the challenge of the analysis, design, and optimization of modern planar microwave circuits and microstrip antennas.

The topics of interest include but are not limited to:

  • Advances in Electromagnetic modeling techniques for planar devices
  • Analysis of high-speed planar interconnects
  • Radiation characteristics of broadband microstrip antennas
  • Design and optimization of planar devices

Dr. Mario Lucido
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 papers will be 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. Applied Sciences 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 2300 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

  • Methods of analytical regularization
  • Method of moments
  • Variational methods
  • Finite-element method
  • Finite-difference method
  • Mode matching technique
  • Transmission line matrix method
  • Finite integration technique
  • Fast multipole method
  • Eigenmode expansion

Published Papers (3 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Article
Analysis of the Scattering from a Two Stacked Thin Resistive Disks Resonator by Means of the Helmholtz–Galerkin Regularizing Technique
Appl. Sci. 2021, 11(17), 8173; https://doi.org/10.3390/app11178173 - 03 Sep 2021
Viewed by 317
Abstract
In this paper, the scattering of a plane wave from a lossy Fabry–Perót resonator, realized with two equiaxial thin resistive disks with the same radius, is analyzed by means of the generalization of the Helmholtz–Galerkin regularizing technique recently developed by the author. The [...] Read more.
In this paper, the scattering of a plane wave from a lossy Fabry–Perót resonator, realized with two equiaxial thin resistive disks with the same radius, is analyzed by means of the generalization of the Helmholtz–Galerkin regularizing technique recently developed by the author. The disks are modelled as 2-D planar surfaces described in terms of generalized boundary conditions. Taking advantage of the revolution symmetry, the problem is equivalently formulated as a set of independent systems of 1-D equations in the vector Hankel transform domain for the cylindrical harmonics of the effective surface current densities. The Helmholtz decomposition of the unknowns, combined with a suitable choice of the expansion functions in a Galerkin scheme, lead to a fast-converging Fredholm second-kind matrix operator equation. Moreover, an analytical technique specifically devised to efficiently evaluate the integrals of the coefficient matrix is adopted. As shown in the numerical results section, near-field and far-field parameters are accurately and efficiently reconstructed even at the resonance frequencies of the natural modes, which are searched for the peaks of the total scattering cross-section and the absorption cross-section. Moreover, the proposed method drastically outperforms the general-purpose commercial software CST Microwave Studio in terms of both CPU time and memory occupation. Full article
Show Figures

Figure 1

Article
A Compact Rectifier Design Method Utilizing Harmonics
Appl. Sci. 2021, 11(5), 2295; https://doi.org/10.3390/app11052295 - 05 Mar 2021
Viewed by 403
Abstract
This paper proposes a compact rectifier design method for utilizing harmonics. Based on total reflection generated by pure reactance loads at the second harmonic (2nd) and open circuit at the third harmonic (3rd), a compact DC-pass filter is designed to effectively utilize the [...] Read more.
This paper proposes a compact rectifier design method for utilizing harmonics. Based on total reflection generated by pure reactance loads at the second harmonic (2nd) and open circuit at the third harmonic (3rd), a compact DC-pass filter is designed to effectively utilize the 2nd and 3rd harmonics excited by the rectifying diode. The amplitudes of the harmonics can be controlled by adjusting the input impedances of the DC-pass filter at harmonics. A prototype operating at 5.8 GHz fundamental frequency is implemented and measured to validate the scenario. When the input power is 18.3 dBm, the measured rectifying efficiency is 71.3%, while the 2nd and the 3rd harmonic amplitudes are −2.4 dBm and 0.1 dBm respectively. This method could also be extended to design a rectifier only utilizing the 2nd or the 3rd harmonic. Full article
Show Figures

Figure 1

Article
Analysis of the Propagation in High-Speed Interconnects for MIMICs by Means of the Method of Analytical Preconditioning: A New Highly Efficient Evaluation of the Coefficient Matrix
Appl. Sci. 2021, 11(3), 933; https://doi.org/10.3390/app11030933 - 20 Jan 2021
Cited by 2 | Viewed by 329
Abstract
The method of analytical preconditioning combines the discretization and the analytical regularization of a singular integral equation in a single step. In a recent paper by the author, such a method has been applied to a spectral domain integral equation formulation devised to [...] Read more.
The method of analytical preconditioning combines the discretization and the analytical regularization of a singular integral equation in a single step. In a recent paper by the author, such a method has been applied to a spectral domain integral equation formulation devised to analyze the propagation in polygonal cross-section microstrip lines, which are widely used as high-speed interconnects in monolithic microwave and millimeter waves integrated circuits. By choosing analytically Fourier transformable expansion functions reconstructing the behavior of the fields on the wedges, fast convergence is achieved, and the convolution integrals are expressed in closed form. However, the coefficient matrix elements are one-dimensional improper integrals of oscillating and, in the worst cases, slowly decaying functions. In this paper, a novel technique for the efficient evaluation of such kind of integrals is proposed. By means of a procedure based on Cauchy integral theorem, the general coefficient matrix element is written as a linear combination of fast converging integrals. As shown in the numerical results section, the proposed technique always outperforms the analytical asymptotic acceleration technique, especially when highly accurate solutions are required. Full article
Show Figures

Figure 1

Back to TopTop