poyinting
Newbie level 1
hfss resonance dip
I recently used IE3D 11.15 to compute the back scattering RCS for a square conductor sitting on top of an infinite dielectric slab with a finite ground conductor (also a square). The excitation was an normally incident plane wave. The code reports a peak (highest) value RCS for (theta0,phi=0) at a frequency of resonance.
I had also used HFSS to compute the back RCS for the same pa-tch on top of a finite dielectric slab with finite ground. The HFSS results show a dip at roughly the same frequency (of resonance). Thus the two codes "seem" to give contradicting answers.
I look forward to your opinions on
1) definition of RCS in IE3D.
2) should there be a peak or a dip for the back scattering RCS when a plane wave is incident upon a square conductor sitting on top of a finite dielectric slab with finite ground.
3) is there any difference in the definition of RCS for planar geometry with infinite or finite ground inside IE3D. (Altough I used infinite dielectric in IE3D, the intension was to model a finite dielectric with finite ground. )
I recently used IE3D 11.15 to compute the back scattering RCS for a square conductor sitting on top of an infinite dielectric slab with a finite ground conductor (also a square). The excitation was an normally incident plane wave. The code reports a peak (highest) value RCS for (theta0,phi=0) at a frequency of resonance.
I had also used HFSS to compute the back RCS for the same pa-tch on top of a finite dielectric slab with finite ground. The HFSS results show a dip at roughly the same frequency (of resonance). Thus the two codes "seem" to give contradicting answers.
I look forward to your opinions on
1) definition of RCS in IE3D.
2) should there be a peak or a dip for the back scattering RCS when a plane wave is incident upon a square conductor sitting on top of a finite dielectric slab with finite ground.
3) is there any difference in the definition of RCS for planar geometry with infinite or finite ground inside IE3D. (Altough I used infinite dielectric in IE3D, the intension was to model a finite dielectric with finite ground. )