期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 71, 期 1, 页码 1147-1151出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2022.3215478
关键词
Surface impedance; Surface waves; Boundary conditions; Impedance; Diffraction; Junctions; Magnetic tunneling; Impedance boundary conditions; semitransparent boundary conditions; Sommerfeld integral method; surface-wave propagation
Recent studies have shown interest in investigating the diffraction of surface waves by junctions of surfaces with different boundary conditions. Many practically applicable surfaces for THz surface waveguides can be described using nontransparent or semitransparent impedance boundary conditions. In this study, rigorous solutions to electromagnetic wave diffraction are found for the junction of a nontransparent impedance wedge and a semitransparent half-plane, as well as the junction of two semitransparent half-planes. These semitransparent surfaces are characterized by generalized semitransparent boundary conditions.
Recent studies of surface-wave-based waveguides for terahertz (THz) imaging and spectroscopy have displayed some interest in investigating surface-wave diffraction by junctions of surfaces with different boundary conditions. Generally, many practically applicable surfaces for THz surface waveguides can be described using nontransparent or semitransparent impedance boundary conditions. In this communication, we find rigorous solutions to electromagnetic wave diffraction by the junction of a nontransparent impedance wedge and a semitransparent half-plane, as well as the junction of two semitransparent half-planes. Generalized semitransparent boundary conditions characterize these semitransparent surfaces.
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