TY - JOUR 
A1 - Gómez Tornero, José Luis
AU - Álvarez Melcón , Alejandro
T1 - Nonorthogonality relations between complex hybrid modes: an application for  the leaky-wave analysis of laterally shielded top-open planar transmission lines
Y1 - 2004
SN - 0018-9480
UR - http://hdl.handle.net/10317/645
AB - 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 shielded slot-line antenna are
presented to confirm the accuracy and usefulness of this novel
proposed method.
KW - Teoría de la Señal y las Comunicaciones
KW - Acoplamiento electromagnético
KW - Fuga de ondas
KW - Guía de ondas plana
KW - Modo asociado de análisis
KW - Electromagnetic coupling
KW - Leaky wave
KW - Plane waveguide
KW - Associated mode of analysis
LA - eng
PB - IEEE Microwave Theory and Techniques Society
ER -