Diplexer with t-junction in E-plane

Waveguide diplexer with a t-junction (septum)vcalculated with 300 frequency steps:
Total computation time: 59 sec with “Normal” sweep
Total computation time:  11 sec with “Adaptive” sweep
The computation for 1000 frequency steps with “Adaptive” sweep is 12 sec
Pentium IV 2.66GHZ 768MB RAM

Please note: higher order modes have been taken into account between the t-junction(E-plane) and the metal insert filter(H-plane)!