Post-processing¶

PalaceToolkit includes modules for extracting and visualising simulation results.

Impedance extraction¶

Extract antenna input impedance from Palace port output files:

from palacetoolkit.simulation import extract_impedance

freq_ghz, z_ant = extract_impedance("postpro/my_antenna")

This reads port-S.csv, port-V.csv, and port-I.csv, computes the reference impedance \(Z_0\), and returns the complex antenna impedance:

\[ Z_\text{ant} = Z_0 \frac{1 + S_{11}}{1 - S_{11}} \]

S-parameter plots¶

from palacetoolkit.s_plot import plot_s_params

plot_s_params("postpro/my_antenna/port-S.csv")

Generates magnitude plots of \(|S_{11}|\) (and \(|S_{21}|\) when available) versus frequency.

Analytic reference values¶

Compare simulation results against closed-form expressions:

from palacetoolkit.analytic import cpw_impedance, cpw_effective_index

Z0 = cpw_impedance(w=44e-6, s=25e-6, h=500e-6, eps_r=11.7)
n_eff = cpw_effective_index(w=44e-6, s=25e-6, h=500e-6, eps_r=11.7)

These use conformal-mapping formulas for coplanar waveguide (CPW) lines.

3D mesh visualisation¶

Interactive viewer (notebooks)¶

from palacetoolkit.viz import view_mesh

view_mesh("model.msh", transparent_groups=["air"])

Static HTML export (docs)¶

from pathlib import Path
from IPython.display import IFrame

from palacetoolkit.viz import render_mesh, render_multi_mesh

img_dir = Path("img")
img_dir.mkdir(exist_ok=True)

render_mesh(mesh, img_dir / "my_model.htm", title="My Model")
IFrame(src="img/my_model.htm", width="100%", height=500)

The exported .htm files are self-contained PyVista viewers that can be displayed in notebooks (or embedded via <iframe> in documentation pages).