165 citations · 609 across the 38 of their papers we have counts for
8 papers · 1 filter
Metasurface Reflector with Real-Time Independent Magnitude and Phase Control
Ahmed Z. Ashoor, Shulabh Gupta
A novel metasurface unit cell architecture is proposed to enable independent control of the reflection magnitude and phase at a desired operation frequency, while maintaining linea…
Integrated Multi-Port Leaky-Wave Antenna Multiplexer/Demultiplexer System for Millimeter-Wave Communication
Mohamed K. Emara, Shulabh Gupta
A novel application of leaky-wave antennas (LWAs) as integrated antennas and multiplexers/demultiplexers is proposed and experimentally demonstrated in the millimeter-wave band at…
Surface Susceptibility Synthesis of Metasurface Skins/Holograms for Electromagnetic Camouflage/Illusions
Tom J. Smy, Shulabh Gupta
A systematic numerical framework based on Integral Equations and Generalized Sheet Transition Conditions (IE-GSTCs) is presented in 2D to synthesize closed metasurface holograms an…
Floquet Analysis of Space-Time Modulated Huygens' Metasurfaces with Lorentz Dispersion
Ville Tiukuvaara, Tom J. Smy, Shulabh Gupta
A rigorous semi-analytical Floquet analysis is proposed for a zero-thickness space-time modulated Huygens' metasurface to model and determine the strengths of the new harmonic comp…
Millimeter-Wave Integrated Side-Fire Leaky-Wave Antenna and its Application as a Spectrum Analyzer
Daniel J. King, Mohamed K. Emara, Shulabh Gupta
An analog, low-profile and shielded spectrum analyzer is proposed for operation at mm-wave frequencies around the 60 GHz band based on a novel side-fire Leaky-Wave Antenna (LWA) co…
Complex Eigenmodes and Eigenfrequencies in Electromagnetics
João G. Nizer Rahmeier, Ville Tiukuvaara, Shulabh Gupta
A first comprehensive treatment on complex eigenmodes is presented for general lossy traveling-wave electromagnetic structures where the per unit length propagation phase shift ($β…
Millimeter-Wave Huygens' Transmit-Arrays based on Coupled Metallic Resonators
Soichi Sakurai, João G. N. Rahmeier, Takashi Tomura +2
A novel Huygens' transmit-array is proposed based on a coupled-resonator approach where two identical elliptical metallic patches with an elliptical hole separated by a dielectric…
Surface Susceptibility Synthesis of Metasurface Holograms for creating Electromagnetic Illusions
Tom. J. Smy, Scott A. Stewart, Shulabh Gupta
A systematic approach is presented to exploit the rich field transformation capabilities of Electromagnetic (EM) metasurfaces for creating a variety of illusions using the concept…