C. Wang et Ka. Zaki, FULL-WAVE MODELING OF GENERALIZED DOUBLE RIDGE-WAVE-GUIDE T-JUNCTIONS, IEEE transactions on microwave theory and techniques, 44(12), 1996, pp. 2536-2542
A rigorous technique for full wave modeling of the generalized double
ridge waveguide T-junction has been developed, Eigen modes in each rid
ge waveguide region are obtained using mode-matching technique. Based
on the eigen mode expansion method, combining the cascading procedure
and computation of the magnetic fields of each mode at the shorted por
ts, the generalized admittance matrices and scattering matrices of all
three ports are obtained. The method is general and very efficient, T
he accuracy and versatility of the method are verified through several
numerical examples, The computed dominant mode's S-parameters are com
pared with that by finite element method (HFSS) and shown to be in goo
d agreement.