%0 Journal Article 
%A Álvarez Melcón , Alejandro
%A Connor, Graham
%A Guglielmi, Marco
%T New Simple Procedure for the Computation of the Multimode Admittance or Impedance Matrix of Planar Waveguide Junctions
%D 2013
%U http://hdl.handle.net/10317/3164
%X Much effort has been devoted in the past to the
development of electromagnetic simulation algorithms for wave-
guide junctions that could at the same time include higher-order
mode interactions and lead to computationally efficient codes.
Even though this is indeed a classical subject, there is still a
strong interest in this area as waveguide systems become increas-
ingly complex, and ever shorter development and manufacturing
times are required. In this paper a simple method is described
for the evaluation of the multimode network representation of
planar waveguide junctions in terms of admittance or impedance
parameters. The key feature of the method is that it starts from
the wanted final results, the equivalent network representation,
in order to obtain an analytic expression for the evaluation of
the relevant matrix elements. The procedure is based on general
network theory and is equivalent to ideally measuring directly the
value of the admittance or impedance elements. In this paper
the evaluation procedure is fully described. Measured results of
actual hardware are then compared with simulations indicating
that the codes developed are indeed very accurate as well as
computationally very efficient.
%K Teoría de la Señal y las Comunicaciones
%K Waveguide junctions
%K Multimode network
%K Direct method
%~ GOEDOC, SUB GOETTINGEN