A novel compact reconfigurable broadband antenna for cognitive radio applications

A Kantemur, J Tak, P Siyari… - IEEE transactions on …, 2020 - ieeexplore.ieee.org
A novel reconfigurable antenna covering an 11.5: 1 bandwidth is designed and fabricated
for cognitive radio applications. The proposed novel antenna has two independent paths to …

Miniaturization of frequency-reconfigurable antenna using periodic slow-wave structure

M Wang, M Tang, HC Zhang, J Xu… - IEEE transactions on …, 2021 - ieeexplore.ieee.org
A challenge for frequency-reconfigurable antennas is how to realize miniaturized structures
while preserving satisfying radiation performance in whole operation bandwidth. To address …

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 …

Characterisation of tunable graphene antenna

SNH Sa'don, MH Jamaluddin, MR Kamarudin… - … -International Journal of …, 2020 - Elsevier
Graphene is a unique material that can display tuning characteristics. This characteristic
originates from its surface complex conductivity, which is controlled by a chemical potential …

A partially magnetized ferrite LTCC-based SIW phase shifter for phased array applications

FA Ghaffar, A Shamim - IEEE Transactions on Magnetics, 2015 - ieeexplore.ieee.org
The theory and design of a half-mode substrate-integrated waveguide ferrite low-
temperature cofired ceramic-based phase shifter are presented in this paper. Unlike typical …

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 …

Antenna‐in‐package designs in multilayered low‐temperature co‐fired ceramic platforms

A Shamim, H Zhang - Antenna‐in‐Package Technology and …, 2020 - Wiley Online Library
Summary Antenna‐in‐package (AiP) is an antenna that is realized on the package of the
driving circuit. Low‐temperature co‐fired ceramic (LTCC) is one of the mainstream …

Higher‐Order Approximate CN‐PML Theory for Magnetized Ferrite Simulations

P Wu, Y **e, H Jiang, L Niu - Advanced Theory and …, 2020 - Wiley Online Library
Two unconditionally stable implementations of the higher‐order perfectly matched layer are
proposed for the modeling of magnetized ferrite in the finite‐difference time‐domain lattice …

Realizing frequency reconfigurable antenna by ferrite‐loaded half‐mode SIW

Q Lou, R Wu, F Meng, Y Poo - Microwave and Optical …, 2017 - Wiley Online Library
We propose and experimentally demonstrate a frequency reconfigurable antenna using
ferrite loaded half‐mode substrate integrated waveguide (SIW). The antenna design is …