4 papers
Non-Local Metasurface-aided Leaky-Wave Antennas
Seokjun Kim, Haneul Ryu, Minseok Kim
This work presents a non-local terahertz metasurface integrated into a leaky-wave antenna for robust, wide-angle beam steering. The metasurface encodes a holographic pattern by exp…
Engineering Spatial Dispersion to Synthesize Arbitrary Spatial Filters Based on Metagratings
Jinyong Kim, Minseok Kim
This paper presents a design framework for synthesizing angularly selective spatial filters using non-uniform metagratings. While traditional metagratings focus on channeling energ…
Nonlocal Dual-Band Reconfigurable Intelligent Surfaces for Precise Full-Space Beamforming
Moosung Kim, Minseok Kim
This paper introduces a nonlocal, dual-band reconfigurable intelligent surface (RIS) designed for full-space beam synthesis at 4.0 GHz and 6.3 GHz. The constituent unit cells compr…
Fixed-Frequency Reconfigurable Leaky-Wave Antennas with Simplified Biasing
Sambong Jang, Minseok Kim
This work introduces a reconfigurable leaky-waveguide antenna with a simplified biasing scheme for dynamic beam steering at a fixed frequency. Unlike prior metasurface-aided leaky-…