Analyzing Glide-Symmetric Holey Metasurfaces Using a Generalized Floquet Theorem

被引：46

作者：

Ghasemifard, Fatemeh ^{[1
]}

Norgren, Martin ^{[1
]}

Quevedo-Teruel, Oscar ^{[1
]}

Valerio, Guido ^{[2
]}

机构：

[1] KTH Royal Inst Technol, Sch Elect Engn & Comp Sci, Dept Electromagnet Engn, S-11428 Stockholm, Sweden

[2] Sorbonne Univ, Lab Elect & Electromagnetisme, F-75252 Paris, France

来源：

IEEE ACCESS | 2018年 / 6卷

关键词：

Dispersive analyses; generalized Floquet theorem; glide symmetry; higher symmetries; metasurfaces; mode matching; periodic structures; GAP WAVE-GUIDE; LUNEBURG LENS; 5G COMMUNICATIONS; GREENS-FUNCTIONS; PROPAGATION; DESIGN; SURFACES; DISPERSION; MEDIA; MODES;

D O I：

10.1109/ACCESS.2018.2882056

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we present a general mode matching formulation to analyze the wave propagation in glide-symmetric metallic surfaces drilled with periodic holes with an arbitrary cross section. A generalized Floquet theorem is applied to reduce the computational cost by imposing boundary conditions only on one of the two surfaces. With a small modification, the formulation can be used also for dispersion analysis of a holey metallic surface with or without a metal plane above it. The method is fast and efficient, and it provides physical insight on the specific symmetry properties of Floquet harmonics in glide-symmetric structures. The formulation is applied to obtain dispersion diagrams of glide-symmetric structures with circular holes as this kind of hole is usually used in practical applications to realize gap waveguides or wideband planar lenses. The results agree well with the reference results from commercial software CST Microwave Studio.

引用

页码：71743 / 71750

页数：8

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