3 papers
physics.app-ph2020
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…
physics.app-ph2020
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…
physics.app-ph2018
Collimating cylindrical Surface Leaky Waves for Highly Improved Radiation Characteristics of Holograms
Mohammad Moein Moeini, Homayoon Oraizi, Amrollah Amini
High resolution microwave leaky wave holograms excited by center-fed cylindrical surface wave launcher show a null at object wave direction which is an undesired effect for electro…