Reconfigurable liquid metal-based SIW phase shifter

S Alkaraki, AL Borja, JR Kelly… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This article presents the first substrate integrated waveguide (SIW) phase shifter that can be
reconfigured using liquid metal (LM). This digital phase shifter exhibits low insertion loss and …

10-GHz low-loss liquid metal SIW phase shifter for phased array antennas

S Alkaraki, QW Lin, AL Borja, Z Wang… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
This article presents a proof of concept demonstrator for a pair of novel phase shifters based
on substrate integrated waveguide (SIW) technology. Gallium-based liquid metal (LM) is …

Li2O-B2O3-SiO2-CaO-Al2O3 and Bi2O3 co-doped gyromagnetic Li0. 43Zn0. 27Ti0. 13Fe2. 17O4 ferrite ceramics for LTCC Technology

T Zhou, H Zhang, C Liu, L **, F Xu, Y Liao, N Jia… - Ceramics …, 2016 - Elsevier
A modified low-temperature liquid phase sintering technique was attempted to fabricate Li
0.43 Zn 0.27 Ti 0.13 Fe 2.17 O 4 ferrite ceramics with a compact structure and improved …

Iron oxide nanoparticle‐based magnetic ink development for fully printed tunable radio‐frequency devices

M Vaseem, FA Ghaffar, MF Farooqui… - Advanced Materials …, 2018 - Wiley Online Library
The field of printed electronics is still in its infancy and most of the reported work is based on
commercially available nanoparticle‐based metallic inks. Although fully printed devices that …

Shear performance of concrete beams with a maximum size of recycled concrete aggregate

BJ Odero, RN Mutuku, T Nyomboi… - Advances in Materials …, 2022 - Wiley Online Library
The use of concrete mixes with recycled materials has gained traction in research
communities. However, the major drawback of the recycled concrete aggregate (RCA) has …

A ferrite LTCC-based monolithic SIW phased antenna array

A Nafe, FA Ghaffar, MF Farooqui… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
In this paper, we present a novel configuration for realizing monolithic substrate integrated
waveguide (SIW)-based phased antenna arrays using Ferrite low-temperature cofired …

Inkjet-printed ferrite substrate-based vialess waveguide phase shifter

U Myrzakhan, FA Ghaffar, M Vaseem… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Magnetically controlled waveguide-based phase shifters are desirable for their high
performance, but are bulky and heavy, thus cannot be easily integrated with printed circuit …

Theory and design of tunable full-mode and half-mode ferrite waveguide isolators

FA Ghaffar, JR Bray, M Vaseem, L Roy… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Ferrite isolators are attractive due to their excellent isolation, low loss, good linearity, and
high-power performance. However, these devices usually operate over a single-frequency …

Design and fabrication of a frequency and polarization reconfigurable microwave antenna on a printed partially magnetized ferrite substrate

FA Ghaffar, M Vaseem, L Roy… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
Design of a polarization reconfigurable and frequency-tunable patch antenna operating in
the partially magnetized state of a ferrite substrate is presented in this communication. A low …

A wideband, 1-bit, electronically reconfigurable phase shifter for high-power microwave phased-array applications

Z Zhang, M Gao, MM Honari, J Wu… - … on Plasma Science, 2023 - ieeexplore.ieee.org
We present the design and high-power experimental characterization of a wideband, high-
power-capable, electronically reconfigurable phase shifter for high-power phased-array …