Substrate integrated waveguide loaded by complementary split-ring resonators and its applications to miniaturized waveguide filters

YD Dong, T Yang, T Itoh - IEEE Transactions on Microwave …, 2009 - ieeexplore.ieee.org
A substrate integrated waveguide with square complementary split-ring resonators (CSRRs)
etched on the waveguide surface is investigated in this paper. The proposed structures …

Observation of the reversed Cherenkov radiation

Z Duan, X Tang, Z Wang, Y Zhang, X Chen… - Nature …, 2017 - nature.com
Reversed Cherenkov radiation is the exotic electromagnetic radiation that is emitted in the
opposite direction of moving charged particles in a left-handed material. Reversed …

Fabrication of clay soil/CuFe2O4 nanocomposite toward improving energy and shielding efficiency of buildings

S Keykavous-Amand, R Peymanfar - Scientific Reports, 2021 - nature.com
In this research, the energy and shielding efficiency of brick, fabricated by clay soil, as a
practical building material was reinforced using CuFe2O4 nanoparticles. Initially, the …

Electromagnetic and optical characteristics of wrinkled Ni nanostructure coated on carbon microspheres

R Peymanfar, A Ahmadi, E Selseleh-Zakerin… - Chemical Engineering …, 2021 - Elsevier
In this study, a wrinkled Ni nanosheet/grapy carbon microsphere (CMS) nanocomposite was
architected based on novel approaches in experimental treatments and applied precursors …

Functionalized carbon microfibers (biomass-derived) ornamented by Bi2S3 nanoparticles: an investigation on their microwave, magnetic, and optical characteristics

R Peymanfar, F Moradi - Nanotechnology, 2020 - iopscience.iop.org
The biomass-derived materials emerged as novel, low-cost, green, and light-weight
microwave absorbers. On the other hand, the sulfide nanostructures due to narrow band gap …

Novel, promising, and broadband microwave‐absorbing nanocomposite based on the graphite‐like carbon nitride/CuS

R Peymanfar, J Karimi, R Fallahi - Journal of Applied Polymer …, 2020 - Wiley Online Library
In this study, a broadband, intense, novel, and promising microwave‐absorbing
nanocomposite was prepared using graphite‐like carbon nitride (g‐C3N4)/CuS suspended …

A novel approach toward reducing energy consumption and promoting electromagnetic interference shielding efficiency in the buildings using Brick/polyaniline …

R Peymanfar, S Keykavous-Amand, MM Abadi… - … and Building Materials, 2020 - Elsevier
In this research, a complementary approach was presented to prepare building materials,
improving shielding and energy efficiency. Accordingly, a macroporous Brick was …

Tailoring La0. 8Sr0. 2MnO3/La/Sr nanocomposite using a novel complementary method as well as dissecting its microwave, shielding, optical, and magnetic …

R Peymanfar, S Ghorbanian-Gezaforodi… - Ceramics …, 2020 - Elsevier
In this work, a novel approach was introduced to reduce the oxide nanoparticles and extract
the pure metal from them. Accordingly, La 0.8 Sr 0.2 MnO 3 nanoparticles were prepared …

Design of miniaturized SIW filter loaded with improved CSRR structures

X Huang - Electronics, 2023 - mdpi.com
In recent years, Split-Ring Resonators (SRRs) and Complementary Split-Ring Resonators
(CSRRs) have gained significant attention for their unique electromagnetic properties, such …

Design of a metamaterial-based backward-wave oscillator

JS Hummelt, SM Lewis, MA Shapiro… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
In this paper, we present the design of a microwave generator using metamaterials (MTMs)
in a negative index waveguide interacting with a high-power electron beam. The microwave …