Analysis of the Dispersion Diagrams of 3D Cubic Periodic Arrangements of Metallic Spheres

被引：0

作者：

Wang, Hairu ^{[1
]}

Zetterstrom, Oskar ^{[1
]}

Castillo-Tapia, Pilar ^{[1
]}

Mesa, Francisco ^{[2
]}

Quevedo-Teruel, Oscar ^{[1
]}

机构：

[1] KTH Royal Inst Technol, Div Electromagnet Engn & Fus Sci, Stockholm, Sweden

[2] Univ Seville, Dept Appl Phys 1, Seville, Spain

来源：

2024 18TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION, EUCAP | 2024年

关键词：

Three-dimensional periodic structures; Dispersion analysis; Irreducible Brillouin zone; GRIN lenses;

D O I：

10.23919/EuCAP60739.2024.10501470

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper investigates the dispersion properties exhibited by three different three-dimensional (3D) periodic arrangements of metallic spheres with the following underlying lattices: simple cubic (sc), body-centered cubic (bcc) and face-centered cubic (fcc) lattice. Their Brillouin zone (BZ) and the corresponding irreducible BZ are introduced. We then examine the dispersion properties along the edges of their respective irreducible BZs. The findings demonstrate that structures with a non-sc arrangement and higher symmetry can improve design versatility while simultaneously reducing the anisotropy of the structure and broadening the operating frequency range. These advantages are beneficial for the development of 3D graded-index (GRIN) lenses.

引用

页数：4

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