Title :
Modal analysis of the magic tree
Author :
Sieverding, Thomas ; Arndt, Fritz
Author_Institution :
Microwave Dept., Bremen Univ., Germany
fDate :
5/1/1993 12:00:00 AM
Abstract :
The full-wave modal S-matrix of the magic-T-junction is derived by applying the mode-matching technique. Four standing-wave solutions in suitably chosen subregions for the four side arms are superimposed in the common cavity region in the middle section. This yields rapid convergence and accurate results, since the electric wall boundary conditions in the waveguide ports are met rigorously. The theory is verified by measurements at a magic-T-junction with standard X-band (WR 90) rectangular waveguide ports.<>
Keywords :
S-matrix theory; rectangular waveguides; waveguide couplers; waveguide theory; WR 90; electric wall boundary conditions; full-wave modal S-matrix; magic tree; magic-T-junction; mode-matching technique; rectangular waveguide ports; standard X-band; standing-wave solutions; waveguide ports; Arm; Boundary conditions; Circuit optimization; Measurement standards; Microwave circuits; Modal analysis; Rectangular waveguides; Tellurium; Tuned circuits; Waveguide theory;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
