Nonorthogonality relations between complex hybrid modes: an application for the leaky-wave analysis of laterally shielded top-open planar transmission lines
Grupo de investigación
Grupo de Electromagnetismo Aplicado a las Telecomunicaciones (GEAT)Área de conocimiento
Teoría de la Señal y las ComunicacionesFecha de publicación
2004-03Editorial
IEEE Microwave Theory and Techniques SocietyCita bibliográfica
GÓMEZ TORNERO, José Luis, ÁLVAREZ MELCÓN, Alejandro. Nonorthogonality relations between complex hybrid modes: an application for the leaky-wave analysis of laterally shielded top-open planar transmission lines. IEEE Transactions on Microwave Theory and Techniques, 52 (3): 760-767, Marzo 2004. ISSN 0018-9480Palabras clave
Acoplamiento electromagnéticoFuga de ondas
Guía de ondas plana
Modo asociado de análisis
Electromagnetic coupling
Leaky wave
Plane waveguide
Associated mode of analysis
Resumen
In this paper, the orthogonality relations between
complex modes are investigated to demonstrate the coupling effect
that exists along a transverse direction ( -axis) between TE and
TM hybrid modes when power storage, loss, or leakage occur
in the longitudinal direction ( -axis) of a transmission line. As an
example, the parallel-plate waveguide modes are used to study
a laterally shielded top-open microstrip line. The study of leaky
waves is a very interesting application of the novel orthogonality
relations derived in this paper. This study is carried out using the
correct and incorrect orthogonality formulations, showing that
physically valid results are obtained only when the orthogonality
relations derived in this paper are properly introduced in the
formulation. A physical explanation of this novel coupling effect
between TE andTM hybrid modes with respect to the -direction
is given in terms of inhomogeneous plane waves. Comparisons
with previous results for a laterally ...
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