| Texto completo | |
| Autor(es): |
Rosa, Guilherme S.
;
Ribeiro, Raul O.
;
Simionato, Eligia
;
Penchel, Rafael A.
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | IEEE Transactions on Microwave Theory and Techniques; v. N/A, p. 12-pg., 2024-07-10. |
| Resumo | |
This article introduces a novel variational formula for modeling waveguides with uniformly curved longitudinal axes. Using the Rayleigh-Ritz method, we analyze the electromagnetic fields in H -plane bend rectangular waveguides. In addition, we present a Galerkin method solution (GMS) for discretizing the associated vector Helmholtz equation within a local curved coordinate system. The proposed methodologies are validated through comparison with analytical results and a Galerkin-based solution from the literature across several representative scenarios. The rate of convergence, with respect to the number of expansion terms in the Rayleigh-Ritz method solution (RRMS), is observed to be faster than that in Galerkin-based solutions, while requiring comparable computational times. Furthermore, we explore the impact of both dielectric and conduction losses via the Rayleigh-Ritz method, aspects previously unattainable with analytical methods. (AU) | |
| Processo FAPESP: | 20/09889-4 - Projeto e fabricação de antenas banda larga usando o processo de manufatura aditiva |
| Beneficiário: | Rafael Abrantes Penchel |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |