A review of broadband low-cost and high-gain low-terahertz antennas for wireless communications applications

R Xu, S Gao, BS Izquierdo, C Gu, P Reynaert… - Ieee …, 2020 - ieeexplore.ieee.org
Low-terahertz (Low-THz, 100 GHz-1.0 THz) technology is expected to provide
unprecedented data rates in future generations of wireless system such as the 6 th …

Resonant cavity antennas for 5G communication systems: A review

A Goudarzi, MM Honari, R Mirzavand - Electronics, 2020 - mdpi.com
Resonant cavity antennas (RCAs) are suitable candidates to achieve high-directivity with a
low-cost and easy fabrication process. The stable functionality of the RCAs over different …

All-metal wideband frequency-selective surface bandpass filter for TE and TM polarizations

A Lalbakhsh, MU Afzal, KP Esselle… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
A novel technique to design a low-cost frequency-selective surface (FSS) bandpass filter is
presented in this article. Wideband polarization-independent FSS bandpass filters are …

All-metal wideband metasurface for near-field transformation of medium-to-high gain electromagnetic sources

A Lalbakhsh, MU Afzal, T Hayat, KP Esselle… - Scientific Reports, 2021 - nature.com
Electromagnetic (EM) metasurfaces are essential in a wide range of EM engineering
applications, from incorporated into antenna designs to separate devices like radome. Near …

Dual-band polarization conversion metasurface for RCS reduction

C Fu, L Han, C Liu, Z Sun, X Lu - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
A linear polarization conversion coding metasurface (MS) is proposed for the radar cross
section (RCS) reduction of an object. The designed MS has both wideband RCS reduction …

A neuro‐based approach to designing a Wilkinson power divider

M Jamshidi, A Lalbakhsh, S Lotfi… - … Journal of RF and …, 2020 - Wiley Online Library
In this paper, a new neuro‐based approach using a feed‐forward neural network is
presented to design a Wilkinson power divider. The proposed power divider is composed of …

Gain enhancement of wideband circularly polarized UWB antenna using FSS

S Adibi, MA Honarvar, A Lalbakhsh - Radio Science, 2021 - ieeexplore.ieee.org
This paper presents a new ultra-wideband (UWB) antenna system with circular polarization
(CP). The antenna is a coplanar waveguide (CPW) feed structure with a modified inverted L …

A compact lowpass filter for satellite communication systems based on transfer function analysis

A Lalbakhsh, MB Jamshidi, H Siahkamari… - … -International Journal of …, 2020 - Elsevier
This paper presents a very efficient design procedure for a high-performance microstrip
lowpass filter (LPF). Unlike many other sophisticated design methodologies of microstrip …

Additively manufactured perforated superstrate to improve directive radiation characteristics of electromagnetic source

T Hayat, MU Afzal, A Lalbakhsh, KP Esselle - IEEE access, 2019 - ieeexplore.ieee.org
Additively manufactured perforated superstrate (AMPS) is presented to realize directive
radio frequency (RF) front-end antennas. The superstrate comprises spatially distributed …

Controlling the most significant grating lobes in two-dimensional beam-steering systems with phase-gradient metasurfaces

K Singh, MU Afzal, M Kovaleva… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
High-directivity antenna systems that provide 2-D beam steering by rotating a pair of phase-
gradient metasurfaces (PGMs) in the near field of a fixed-beam antenna, hereafter referred …