Band Pass Waveguide filter

The model consists of a cylindrical resonator cavity coupled to an external waveguide by means of short rectangular coupling irises operating below cutoff. The two apertures on the cavity sidewall form an angle of 180 degree. The cavity is fed by an R120 rectangular waveguide. Taking into account the symmetry of the problem only a quarter of the structure need to be modeled.

 

Band Pass filter 3D model :

 

 

HFWorks Results:

  • Electric Field Intensity (at 4.577615 GHz)

  • Magnetic Field Intensity (at 4.577615 GHz)

  • Smith Chart Plot (S1121)

  • Rectangular Chart Plot (S1121)

  • VSWR Plot

  • Results Viewer