Three-Dimensional Integral Equation-based GSTC Method for Composite Structure With Arbitrary-Shaped Nonpenetrating Metasurface

IF 1.1 4区 计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Inhwan Kim, Yeonghoon Noh, Hyeong-Rae Im, Ic-Pyo Hong, Hyunsoo Lee, Jong-Gwan Yook
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Abstract

This study proposes a novel three-dimensional integral-equation-based electromagnetic solver with surface susceptibilities of metasurfaces that satisfy the generalised sheet transition conditions (GSTCs). The metasurface is replaced by an equivalent zero-thickness sheet with surface susceptibilities, which can be extracted using the retrieval method deduced from the GSTCs. We consider the problems of composite structures with metasurfaces for greater generality and applicability. The integral equations of the problems are formulated and discretised using Rao–Wilton–Glisson (RWG) basis functions through Galerkin's testing procedure. We also propose a technique for enforcing the boundary condition at the interface, which should be carefully considered within the problem formulation of composite structures. The proposed method is validated by using a circuit-analog-based absorber to extract the surface susceptibilities. Composite structures, including flat and curved metasurfaces, are employed to verify the IE-GSTC solver, and numerical simulation results are compared with those obtained from a commercial finite-element method-based simulation (FEM-HFSS).

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来源期刊
Iet Microwaves Antennas & Propagation
Iet Microwaves Antennas & Propagation 工程技术-电信学
CiteScore
4.30
自引率
5.90%
发文量
109
审稿时长
7 months
期刊介绍: Topics include, but are not limited to: Microwave circuits including RF, microwave and millimetre-wave amplifiers, oscillators, switches, mixers and other components implemented in monolithic, hybrid, multi-chip module and other technologies. Papers on passive components may describe transmission-line and waveguide components, including filters, multiplexers, resonators, ferrite and garnet devices. For applications, papers can describe microwave sub-systems for use in communications, radar, aerospace, instrumentation, industrial and medical applications. Microwave linear and non-linear measurement techniques. Antenna topics including designed and prototyped antennas for operation at all frequencies; multiband antennas, antenna measurement techniques and systems, antenna analysis and design, aperture antenna arrays, adaptive antennas, printed and wire antennas, microstrip, reconfigurable, conformal and integrated antennas. Computational electromagnetics and synthesis of antenna structures including phased arrays and antenna design algorithms. Radiowave propagation at all frequencies and environments. Current Special Issue. Call for papers: Metrology for 5G Technologies - https://digital-library.theiet.org/files/IET_MAP_CFP_M5GT_SI2.pdf
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