Analysis and design of general printed circuit board metagratings with an equivalent circuit model approach

G Xu, GV Eleftheriades, SV Hum - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
An accurate equivalent circuit model (ECM) for general multiwire multiorder printed circuit
board (PCB) metagratings (MGs) is developed. The effective impedances of the grating …

Unlocking complexity using the ECA: The equivalent circuit model as an efficient and physically insightful tool for microwave engineering

F Mesa, R Rodriguez-Berral… - IEEE Microwave …, 2018 - ieeexplore.ieee.org
In the study of electromagnetic wave propagation and scattering, researchers have always
faced the dichotomy of dealing directly with Maxwell's equations (and their complicated …

Exploring the potential of the multi-modal equivalent circuit approach for stacks of 2-D aperture arrays

A Alex-Amor, F Mesa… - … on Antennas and …, 2021 - ieeexplore.ieee.org
Many frequency-selective surface (FSS) structures are based on the use of a single periodic
array of slot/apertures in a conducting sheet embedded in a layered medium. However, it is …

Fully Metallic Dual-Band Linear-to-Circular Polarizer for K/Ka-band

J Lundgren, O Zetterstrom, F Mesa… - IEEE Antennas and …, 2021 - ieeexplore.ieee.org
A dual-band polarizer is presented that converts linear polarization into circular polarization
with orthogonal handedness in the satcom bands 19.7–20.2 GHz and 29.5–30 GHz. The …

Analytical equivalent circuits for three-dimensional metamaterials and metagratings

A Alex-Amor, S Moreno-Rodríguez, P Padilla… - Physical Review …, 2023 - APS
Recently, three-dimensional (3D) metamaterials have undergone a revolution driven mainly
by the popularization of 3D-printing techniques, which has enabled the implementation of …

Equivalent circuit models for metasurfaces using floquet modal expansion of surface current distributions

E Baladi, SV Hum - IEEE Transactions on Antennas and …, 2021 - ieeexplore.ieee.org
This work presents a fully analytical method for obtaining equivalent circuit models (ECMs)
that predict the magnitude and phase of scattering parameters for reflectarray (RA) and/or …

Variational-based approach to investigate Fano resonant plasmonic metasurfaces

M Pasdari-Kia, A Masihi, M Mohammadi, H Ahmadi… - Optics …, 2023 - opg.optica.org
Considering the widespread applications of resonant phenomena in metasurfaces to bend,
slow, concentrate, guide and manipulate lights, it is important to gain deep analytical insight …

A full-wave generalized PEEC model for periodic metallic structure with arbitrary shape

Y Jiang, WJ Zhao, RXK Gao, EX Liu… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this work, a full-wave partial element equivalent circuit (PEEC) model for 2-D periodic
metallic structures is proposed. The mixed potential integral equations (MPIEs) with periodic …

Dissipation losses in artificial dielectric layers

D Cavallo - IEEE Transactions on Antennas and Propagation, 2018 - ieeexplore.ieee.org
Closed-form expressions to describe artificial dielectric layers with finite conductivity are
presented. The propagation of a generic plane wave within the artificial material is described …

Solving sub-wavelength lattice reduction in full-metal front-ends for dual-polarized active antennas

L Polo-López, E Menargues… - … on Antennas and …, 2022 - ieeexplore.ieee.org
This article proposes an original structure of evanescent quadridge antenna (EQA) to
conceive dual-polarized full-metal front-ends that can be used in active antennas (AAs) with …