24 citations · 33 across the 6 of their papers we have counts for
9 papers
Semi-analytical Model of Multi-tile Rectangular Waveguide-fed Metasurfaces using Coupled Dipole Modeling Framework
Insang Yoo, Michael Boyarsky, David R. Smith
We present a semi-analytical model to analyze multi-tile metasurface antennas consisting of a set of metasurface tiles and a practical power-dividing network that excites the tiles…
Design of Rectangular Waveguide-fed Metasurfaces for Near-Field Shaping using a Coupled Dipole Model
Insang Yoo, Dong Hwan Min, Thomas Fromenteze +1
We present the design of rectangular waveguide-excited metasurfaces for near-field shaping using a coupled dipole framework. Waveguide-fed metasurfaces are array-like radiating sys…
Equivalent Circuit Models for Waveguide-Fed, Resonant, Metamaterial Elements
David R. Smith, Yeonghoon Noh, Insang Yoo +2
We propose an approach to extracting equivalent circuit models for waveguide-fed, resonant metamaterial elements, such as the complementary, electric inductive-capacitive element (…
Equivalence of Polarizability and Circuit Models for Waveguide-Fed Metamaterial Elements
David R. Smith, Mohsen Sazegar, Insang Yoo
A common variant of a metasurface antenna consists of an array of metamaterial elements coupled to a waveguide feed. The guided wave excites the metamaterial elements, coupling ene…
Hollow Rectangular Waveguide-fed Holographic Beamforming Antenna Additively Manufactured (3D Printed) with Conductive Polymer
Insang Yoo, Jonah Gollub, Shengrong Ye +4
We present the design and fabrication of 3D printed holographic beamforming antennas. The antennas utilize additively manufactured hollow rectangular waveguides that feed radiating…
Design of Conformal Array of Rectangular Waveguide-fed Metasurfaces
Insang Yoo, David R. Smith
We present a systematic design method for a cylindrical conformal array of rectangular waveguide-fed metasurfaces. The conformal metasurface consists of multiple curved rectangular…
Holographic Metasurface Antennas for Uplink Massive MIMO Systems
Insang Yoo, David R. Smith
We propose an uplink massive MIMO system using an array of holographic metasurfaces as a sector antenna. The antenna consists of a set of rectangular waveguide-fed metasurfaces com…
Dynamic Metasurface Antennas for MIMO-OFDM Receivers with Bit-Limited ADCs
Hanqing Wang, Nir Shlezinger, Yonina C. Eldar +4
The combination of orthogonal frequency modulation (OFDM) and multiple-input multiple-output (MIMO) systems plays an important role in modern communication systems. In order to mee…
Dynamic Metasurface Antennas for Uplink Massive MIMO Systems
Nir Shlezinger, Or Dicker, Yonina C. Eldar +3
Massive multiple-input multiple-output (MIMO) communications are the focus of considerable interest in recent years. While the theoretical gains of massive MIMO have been establish…