1. Transverse impedance of Ceramic collimator
Transverse impedance of Ceramic collimator. Comparison of HFSS versus GdfidL
A.Grudiev

2. GdfidL setup Z Lc Setup 1: PML b.c. infinitely long setup
Perfect Conductor
Collimator: εr, σ 2b
Setup 1: PML b.c.
infinitely long setup
Setup 2: Short Circuit b.c.
finite length setup

3. Dependence on the Lc. εr=5, σ=0
Setup1: PMLBC
Numerical effect
Setup2: SCBC
f[MHz]
f[MHz]

4. Dependence on the mesh. Lc=1m, εr=5, σ=0
Setup1: PMLBC
f[MHz]
Setup2: SCBC
f[MHz]

5. HFSS setup. Infinitely long setup
b=2mm
d=10mm L0
Δ/2=1mm
From V. Vaccaro (1994)

6. Variation of σ=1 - 10-6, εr=1 , Lc=1m, d=10mm
f[MHz]
Very good agreement between HFSS and GdfidL

7. Variation of σ=1 - 106, εr=1, Lc=1m, d=10mm
f[MHz]
No agreement between HFSS and GdfidL for σ > 10. GdfidL mesh is too bad ?

8. Variation of εr=2-20, σ=0, d=10mm
Imaginary part of the transverse impedance
f[MHz]

9. Variation of d=1-20mm, σ=0, εr=5. HFSS setup
f[MHz]

10. Variation of d=1-20mm, σ=1, εr=1. HFSS setup
f[MHz]
f[MHz]