16 citations · 45 across the 15 of their papers we have counts for
5 papers · 1 filter
Adiabatic Floquet-Wave Expansion for the Analysis of Leaky-Wave Holograms Generating Polarized Vortex Beams
Amrollah Amini, Homayoon Oraizi
This paper presents the combination of aperture field estimation (AFE) technique and adiabatic Floquet-wave (AFW) expansion method for the analysis of leaky-wave holograms capable…
Broadband Tunable Terahertz Polarization Converter based on Graphene-shaped Metasurfaces
Behnaz Bakhtiari, Homayoon Oraizi, Ali Abdolali
In this paper, a broadband tunable polarization converter based on graphene metasurfaces is proposed. This polarization converter works in the terahertz (THz) frequency region, usi…
Wide-scanning Circularly Polarized Reflector-based Modulated Metasurface Antenna Enabled by a Broadband Polarizer
Ali Mohammad Hakimi, Ali Keivaan, Homayoon Oraizi +1
A circularly polarized leaky-wave antenna capable of frequency scanning is proposed in this paper. The main objective is to achieve high gain and polarization purity without the ne…
Reconfigurable honeycomb metamaterial absorber having incident angular stability
Javad Shabanpour, Sina Beyraghi, Homayoon Oraizi
Ultrawide-angle electromagnetic wave absorbers with excellent mechanical properties are required in many diverse applications such as sensing, and stealth technologies. Here, a nov…
Some useful approximations for calculation of directivities of multibeam power patterns of large planar arrays
Javad Shabanpour, Homayoon Oraizi
In this paper, by adopting the superposition of terms with unequal coefficients, some useful closed-form formulas for the class of large planar arrays are presented for predicting…