Hyperbolic dispersion and negative refraction in a periodic perfect magnetic conductor and perfect electric conductor parallel-plate waveguide structure
- Type
- Article
- Citation
- Results in Physics, v.77
- Issued Date
- 2025-10
- Abstract
- We present a numerical demonstration that a periodic structure composed of alternating perfect magnetic conductor (PMC) and perfect electric conductor (PEC) parallel-plate waveguides (PPWs), filled with dielectric materials of permittivity ɛ
1 and ɛ2 , and separated by a gap h, exhibits hyperbolic dispersion and negative refraction. This phenomenon is enabled by surface waves confined at the PMC–PEC interfaces and disappears when the dielectric permittivities are equal (ɛ1 =ɛ2 ), eliminating surface wave support. Furthermore, the hyperbolic nature of the dispersion is confirmed by simulated radiation patterns from a point dipole source embedded in the periodic structure. © 2025 Elsevier B.V., All rights reserved.
- Publisher
- Elsevier B.V.
- Appears in Collections:
- Research Institutes > 1. Journal Articles
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