Patch

class ansys.aedt.core.modeler.advanced_cad.stackup_3d.Patch(application, frequency, dx, signal_layer, dielectric_layer, dy=None, patch_position_x=0, patch_position_y=0, patch_name='patch', reference_system=None, axis='X')

Patch Class in Stackup3D. Create a parametrized patch.

It is preferable to use the add_patch method in the class Layer3D than directly the class constructor.

Parameters:

applicationansys.aedt.core.hfss.Hfss

HFSS design or project where the variable is to be created.

frequencyfloat, None

Target resonant frequency for the patch antenna. The default is None, in which case the patch frequency is that of the layer or of the stackup.

dxfloat

The patch width.

signal_layeransys.aedt.core.modeler.advanced_cad.stackup_3d.Layer3D

The signal layer where the patch will be drawn.

dielectric_layeransys.aedt.core.modeler.advanced_cad.stackup_3d.Layer3D

The dielectric layer between the patch and the ground layer. Its permittivity and thickness are used in prediction formulas.

dyfloat, None, optional

The patch length. By default, it is None and so the length is calculated by prediction formulas.

patch_position_xfloat, optional

Patch x position, by default it is 0.

patch_position_yfloat, optional

Patch y position, by default it is 0.

patch_namestr, optional

Patch name, by default “patch”.

reference_systemstr, None, optional

Coordinate system of the patch. By default, None.

axisstr, optional

Patch length axis, by default “X”.

Examples

>>> from ansys.aedt.core import Hfss
>>> from ansys.aedt.core.modeler.advanced_cad.stackup_3d import Stackup3D
>>> hfss = Hfss()
>>> stackup = Stackup3D(hfss)
>>> gnd = stackup.add_ground_layer("ground", material="copper", thickness=0.035, fill_material="air")
>>> dielectric = stackup.add_dielectric_layer("dielectric", thickness="0.5" + length_units, material="Duroid (tm)")
>>> signal = stackup.add_signal_layer("signal", material="copper", thickness=0.035, fill_material="air")
>>> patch = signal.add_patch(patch_length=9.57, patch_width=9.25, patch_name="Patch")
>>> stackup.resize_around_element(patch)
>>> pad_length = [3, 3, 3, 3, 3, 3]  # Air bounding box buffer in mm.
>>> region = hfss.modeler.create_region(pad_length,is_percentage=False)
>>> hfss.assign_radiation_boundary_to_objects(region)
>>> patch.create_probe_port(gnd, rel_x_offset=0.485)

Methods

Patch.create_lumped_port(reference_layer[, ...])	Create a parametrized lumped port.
Patch.create_probe_port(reference_layer[, ...])	Create a coaxial probe port for the patch.
Patch.quarter_wave_feeding_line([...])	Create a Trace to feed the patch.
Patch.set_optimal_width()	Set the expression of the NamedVariable corresponding to the patch width, to an optimal expression.

Attributes

Patch.added_length	Added length calculation.
Patch.aedt_object	PyAEDT object 3D.
Patch.application	App object.
Patch.dielectric_layer	Dielectric layer that the object belongs to.
Patch.effective_permittivity	Effective permittivity.
Patch.frequency	Model frequency.
Patch.impedance	Impedance.
Patch.layer_name	Layer name.
Patch.layer_number	Layer ID.
Patch.length	Length.
Patch.material_name	Material name.
Patch.name	Object name.
Patch.permittivity	Permittivity.
Patch.points_on_layer	Object bounding box.
Patch.position_x	Starting position X.
Patch.position_y	Starting position Y.
Patch.reference_system	Coordinate system of the object.
Patch.signal_layer	Signal layer that the object belongs to.
Patch.substrate_thickness	Substrate thickness.
Patch.wave_length	Wave length.
Patch.width	Width.