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Bowtie antenna synthesis

This example demonstrates how to synthesize a bowtie antenna using the BowTieRounded class. It initiates AEDT through PyAEDT, sets up an empty HFSS design, and proceeds to create the antenna.

Perform required imports

Import the antenna toolkit class and PyAEDT.

import tempfile

import ansys.aedt.core

from ansys.aedt.toolkits.antenna.backend.antenna_models.bowtie import BowTieRounded

Set AEDT version

Set AEDT version.

aedt_version = "2026.1"

Set non-graphical mode

Set non-graphical mode.

non_graphical = True

Create temporary directory

temp_dir = tempfile.TemporaryDirectory(suffix="_ansys")
project_name = ansys.aedt.core.generate_unique_project_name(root_name=temp_dir.name, project_name="bowtie_example")

Create antenna object only for synthesis

Create antenna object.

oantenna1 = BowTieRounded(None)
print(
    "Arm length: {}{} at {}{}".format(
        str(oantenna1.synthesis_parameters.arm_length.value),
        oantenna1.length_unit,
        oantenna1.frequency,
        oantenna1.frequency_unit,
    )
)

Arm length: 3.7mm at 10.0GHz

Change synthesis frequency

Modify resonance frequency and modify parameters.

oantenna1.frequency = 12.0
print(
    "Arm length: {}{} at {}{}".format(
        str(oantenna1.synthesis_parameters.arm_length.value),
        oantenna1.length_unit,
        oantenna1.frequency,
        oantenna1.frequency_unit,
    )
)

Arm length: 3.03mm at 12.0GHz

Create an empty HFSS design

Create an empty HFSS design.

app = ansys.aedt.core.Hfss(project=project_name, version=aedt_version, non_graphical=non_graphical)

PyAEDT INFO: Python version 3.14.5 (tags/v3.14.5:5607950, May 10 2026, 10:43:50) [MSC v.1944 64 bit (AMD64)].
PyAEDT INFO: PyAEDT version 1.0.1.
PyAEDT INFO: Initializing Desktop session.
PyAEDT INFO: AEDT version 2026.1.
PyAEDT INFO: New AEDT session is starting on gRPC port 52376.
PyAEDT INFO: Starting new AEDT gRPC session on port 52376.
PyAEDT INFO: Launching AEDT server with gRPC transport mode: TransportMode.WNUA
PyAEDT INFO: Electronics Desktop started on gRPC port 52376 after 9.8 seconds.
PyAEDT INFO: AEDT installation Path C:\Program Files\ANSYS Inc\v261\AnsysEM
PyAEDT INFO: Connected to AEDT gRPC session on port 52376.
PyAEDT INFO: Non-graphical mode detected. Disabling Desktop logs.
PyAEDT INFO: Project bowtie_example has been created.
PyAEDT INFO: No design is present. Inserting a new design.
PyAEDT INFO: Added design 'HFSS_4QX' of type HFSS.
PyAEDT INFO: AEDT objects correctly read

Create antenna in HFSS

Create antenna object, change frequency synthesis, create antenna, and set up in HFSS.

oantenna1 = BowTieRounded(app)

PyAEDT INFO: Modeler class has been initialized! Elapsed time: 0m 0sec
PyAEDT INFO: Materials class has been initialized! Elapsed time: 0m 0sec

# Create antenna in HFSS.
oantenna1.model_hfss()

PyAEDT INFO: Parsing design objects. This operation can take time
PyAEDT INFO: Refreshing bodies from Object Info
PyAEDT INFO: Bodies Info Refreshed Elapsed time: 0m 0sec
PyAEDT INFO: 3D Modeler objects parsed. Elapsed time: 0m 0sec
PyAEDT INFO: Union of 2 objects has been executed.

True

Create antenna setup.

oantenna1.setup_hfss()

PyAEDT INFO: Boundary Perfect E PerfE_8MT0TQ has been created.
PyAEDT INFO: Boundary Perfect E PerfE_3F212J has been created.
PyAEDT INFO: Boundary AutoIdentify port_Patch_2SLTRO_1 has been created.

True

Change default name.

oantenna1.name = "MyAmazingAntenna"

Create antenna in HFSS

Create antenna object, change origin parameter in the antenna definition, create antenna, and set up in HFSS.

oantenna2 = BowTieRounded(app, origin=[20, 5, 0], name="MyAntenna")
oantenna2.model_hfss()
oantenna2.setup_hfss()

PyAEDT INFO: Parsing design objects. This operation can take time
PyAEDT INFO: Refreshing bodies from Object Info
PyAEDT INFO: Bodies Info Refreshed Elapsed time: 0m 0sec
PyAEDT INFO: 3D Modeler objects parsed. Elapsed time: 0m 0sec
PyAEDT INFO: Union of 2 objects has been executed.
PyAEDT INFO: Boundary Perfect E PerfE_XKECMM has been created.
PyAEDT INFO: Boundary Perfect E PerfE_3BMM7F has been created.
PyAEDT INFO: Boundary AutoIdentify port_MyAntenna_1 has been created.

True

Plot HFSS model

Plot geometry with PyVista.

model = app.plot(show=True)

PyAEDT INFO: Parsing C:\Users\ansys\AppData\Local\Temp\tmpixi8wkld_ansys\pyaedt_prj_CPO\bowtie_example.aedt.
PyAEDT INFO: File C:\Users\ansys\AppData\Local\Temp\tmpixi8wkld_ansys\pyaedt_prj_CPO\bowtie_example.aedt correctly loaded. Elapsed time: 0m 0sec
PyAEDT INFO: aedt file load time 0.018250226974487305
PyAEDT INFO: PostProcessor class has been initialized! Elapsed time: 0m 0sec
PyAEDT INFO: PostProcessor class has been initialized! Elapsed time: 0m 0sec
PyAEDT INFO: Post class has been initialized! Elapsed time: 0m 0sec

C:\actions-runner\_work\pyaedt-toolkits-antenna\pyaedt-toolkits-antenna\.venv\Lib\site-packages\ansys\aedt\core\visualization\plot\pyvista.py:1184: PyVistaDeprecationWarning: ``Plotter.button_widgets`` is deprecated; use ``Plotter.widgets.button_widgets`` instead.
  while len(self.plot.button_widgets) > 1:

Release AEDT

Release AEDT.

app.release_desktop(True, True)

PyAEDT INFO: Desktop has been released and closed.

True

Clean temporary directory

temp_dir.cleanup()