Review on ultra-wideband phased array antennas

T Latha, G Ram, GA Kumar, M Chakravarthy - IEEE Access, 2021 - ieeexplore.ieee.org
Ultra-wideband (UWB) phased array antennas are essential for radar, communication, and
Electronic Warfare (EW) applications. Systems can operate over wide-band coverage. The …

A broadband circularly polarized single-layer metasurface antenna using characteristic-mode analysis

A El Yousfi, A Lamkaddem… - … on Antennas and …, 2023 - ieeexplore.ieee.org
In this work, we propose a low-profile single-layer coplanar waveguide (CPW)-fed
metasurface (MTS) antenna with broadband circular polarization (CP) radiation. With the …

Standing-wave feeding for high-gain linear dielectric resonator antenna (DRA) array

KA Abdalmalak, AA Althuwayb, CS Lee, GS Botello… - Sensors, 2022 - mdpi.com
A novel feeding method for linear DRA arrays is presented, illuminating the use of the power
divider, transitions, and launchers, and keeping uniform excitation to array elements. This …

Symmetry Implications of a 60 GHz Inverted Microstrip Line Phase Shifter with Nematic Liquid Crystals in Diverse Packaging Boundary Conditions

J Li, H Li - Symmetry, 2024 - mdpi.com
This work demystifies the role that packaging boundary conditions (both physically and
electromagnetically) can play in a nematic liquid crystal (NLC)-based inverted microstrip …

Beyond-Decade Ultrawideband Quad-Ridge Flared Horn With Dielectric Load From 1 to 20 GHz

J Flygare, J Yang, AW Pollak… - … on Antennas and …, 2023 - ieeexplore.ieee.org
In this article, we present a novel dielectrically loaded quad-ridge flared horn (QRFH) as a
reflector feed with beyond-decade ultrawideband performance. The dielectric is machined in …

[HTML][HTML] Assessing Vulnerabilities in Line Length Parameterization and the Per-Unit-Length Paradigm for Phase Modulation and Figure-of-Merit Evaluation in 60 GHz …

J Li, H Li - Symmetry, 2024 - mdpi.com
The figure-of-merit (FoM) is a crucial metric in evaluating liquid crystal (LC) phase shifters,
significantly influencing the selection of superior device candidates. This paper identifies, for …

Cross‐polarization gain calibration of linearly polarized VLBI antennas by observations of 4C 39.25

F Jaron, I Martí‐Vidal, M Schartner… - Radio …, 2024 - Wiley Online Library
Radio telescopes with dual linearly polarized feeds regularly participate in Very Long
Baseline Interferometry. One example is the VLBI Global Observing System (VGOS), which …

High-gain, circularly-polarized THz antenna with proper modeling of structures with thin metallic walls

D Warmowska, KA Abdalmalak, LEG Muñoz… - IEEE …, 2020 - ieeexplore.ieee.org
In the paper, a corporate feed antenna array with slot radiators and a layer of polarizing
patches is designed to operate at 350 GHz. The antenna is conceived as a silicon structure …

[HTML][HTML] Considerations of VLBI transmitters on Galileo satellites

A Jaradat, F Jaron, J Gruber, A Nothnagel - Advances in Space Research, 2021 - Elsevier
For directly linking the dynamical reference frame of satellite orbits to the quasi-inertial
reference frame of extra-galactic radio sources, observations of satellites with the Very Long …

Design of a broadband circularly-polarized single-layer metasurface antenna using CMA

A El Yousfi, A Lamkaddem… - 2021 15th European …, 2021 - ieeexplore.ieee.org
This paper presents a single layer low profile broadband circularly polarized (CP)
metasurface (MTS) antenna fed through a Coplanar Waveguide (CPW). The MTS consists of …