Multi-layered parallel plate waveguide with electrically and magnetically biased graphene sheets

• Published in: Journal of electromagnetic waves and applications Vol. 35; no. 17; pp. 2335 - 2348
• Main Authors: Mohaghegh, M., Arand, B. Abbasi
• Format: Journal Article
• Language: English
• Published: Taylor & Francis 22.11.2021
• Subjects: an-isotropic model of graphen; Graphene; Kubo formula; parallel-plate wave-guide (PPWG); wave propagation
• ISSN: 0920-5071; 1569-3937
• DOI: 10.1080/09205071.2021.1947391

The performance of a multi-layered parallel plate waveguide, supported by graphene plates, is evaluated here. The graphene layers were biased with both magnetic and electric fields. The graphene plates weremodelled as an anisotropic surface derived from the Kubo formula. Maxwell's equations were solved for these waveguides; and it is shown when both magnetic and electric biases were applied to the graphene, hybrid modes propagated inside the waveguides. The intensity of each TM and TE mode could be adjusted with an applied external field bias. This study of wave confinement has shown that, by varying the bias, full control can be exerted over the wave's propagation within a waveguide; whereby, increasing the bias causes added phase changes over the propagation length, while increasing the waveguide's attenuation. It must be emphasized that the presented procedure is also applicable to other guiding structures that have boundary with isotropic or anisotropic conductivities.