MC Johnson, B Rothaar - US Patent 9,786,986, 2017 - Google Patents
A reconfigurable holographic antenna and a method of shaping an antenna beam pattern of a reconfigurable holographic antenna is disclosed. A baseline holographic pattern is driven …
With the advent of 5G, software-defined radios (SDRs), and ultra-wideband systems, there is a rapid rise in the demand for reconfigurable RF front ends. Conventional methods of using …
BJ Che, FY Meng, YL Lyu, YQ Zhao… - Journal of Physics D …, 2020 - iopscience.iop.org
A novel liquid crystal (LC)-based holographic antenna (HA) with low sidelobe level is proposed in this paper to achieve large beam scanning range and multi-beam scanning …
F Mir, L Matekovits, A De Sabata - AEU-International Journal of Electronics …, 2021 - Elsevier
The design and characteristics of a PIN diode based tunable Frequency Selective Surface (FSS) is provided. Spatial filtering, polarization filtering and polarization control are all …
A 1-D finite electromagnetic bandgap (EBG) periodic structure is studied. In the structure, EBG behaviour arises from a unit cell comprised of a metallic patch sandwiched between …
L Matekovits, M Heimlich, KP Esselle - Journal of Electromagnetic …, 2011 - Taylor & Francis
A planar, metamaterial-based, one-dimensional periodic structure that can be switched between multiple states is numerically investigated. It can be fabricated at low cost in gallium …
ABSTRACT A one-dimensional periodic structure comprising of eight unit cells each having two metallic patches sandwiched between microstrip line and ground plane has been …
L Matekovits, A De Sabata… - IEEE Antennas and …, 2011 - ieeexplore.ieee.org
The effect of the biasing network (BN), formed by coplanar transmission lines (CPWs) built into the ground plane itself, on the dispersion characteristics of a tunable unit cell (UC) is …
A De Sabata, L Matekovits - Journal of Electromagnetic Waves and …, 2012 - Taylor & Francis
We introduce a novel structure of inhomogeneous parallel plate waveguide suitable for advanced applications requiring frequency tunability. The structure relies on microstrip …