Abstract
The study of the dispersion properties of planar transmission lines including metallic losses with the generalized transverse resonance method is formalized in building an equivalent network of the cross-section which specifies the relationships between the tangential components of the fields on each side of the interfaces. Virtual sources represent the trial quantities chosen to describe the problem. With twoport type boundary conditions, the trial quantities are not easily defined from physical considerations, but the virtual sources obey to specific rules. This purpose is illustrated in studying the attenuation in lossy suspended coplanar transmission lines.
Résumé
Ľétude de la dispersion des lignes planaires présentant des pertes ohmiques par la méthode de la résonance transverse généralisée, se formalise au moyen ďun circuit équivalent de la section droite qui rend compte des relations entre les champs tangentiels aux interfaces. Des sources virtuelles représentent les grandeurs ďessai retenues pour formuler le problème. Comme les conditions aux limites sont de type quadripôle, ces grandeurs ďessai ne peuvent se déduire de considérations physiques, comme dans le cas sans perte, mais les sources virtuelles obéissent à certaines règles. Cette démarche est illustrée par ľétude de ľatténuation de lignes coplanaires suspendues.
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Bouzidi, F., Aubert, H., Bajon, D. et al. Equivalent circuit representation of lossy coplanar waveguides. Ann. Télécommun. 47, 551–554 (1992). https://doi.org/10.1007/BF02998323
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DOI: https://doi.org/10.1007/BF02998323