# This code is part of KQCircuits
# Copyright (C) 2023 IQM Finland Oy
#
# This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with this program. If not, see
# https://www.gnu.org/licenses/gpl-3.0.html.
#
# The software distribution should follow IQM trademark policy for open-source software
# (meetiqm.com/developers/osstmpolicy). IQM welcomes contributions to the code. Please see our contribution agreements
# for individuals (meetiqm.com/developers/clas/individual) and organizations (meetiqm.com/developers/clas/organization).
from typing import Callable, List, Optional, Type
from kqcircuits.elements.element import Element
from kqcircuits.simulations.simulation import Simulation
from kqcircuits.pya_resolver import pya
from kqcircuits.simulations.port import InternalPort, EdgePort
from kqcircuits.util.parameters import Param, pdt, add_parameters_from
from kqcircuits.util.refpoints import RefpointToInternalPort, RefpointToEdgePort, WaveguideToSimPort, JunctionSimPort
def _get_build_function(element_class, ignore_ports, transformation_from_center):
def _build_for_element_class(self):
simulation_cell = self.add_element(
element_class, **{**self.get_parameters(), "junction_type": "Sim", "fluxline_type": "none"}
)
element_trans = pya.DTrans(0, False, self.box.center())
if transformation_from_center is not None:
element_trans *= transformation_from_center(simulation_cell)
_, refp = self.insert_cell(simulation_cell, element_trans, rec_levels=None)
# Add ports
port_i = 0
for port in element_class.get_sim_ports(self):
if ignore_ports is not None and port.refpoint in ignore_ports:
continue
if isinstance(port, RefpointToInternalPort):
self.ports.append(
InternalPort(
(port_i := port_i + 1),
refp[port.refpoint],
refp[port.ground_refpoint],
port.resistance,
port.reactance,
port.inductance,
port.capacitance,
port.face,
port.junction,
port.signal_layer,
)
)
elif isinstance(port, RefpointToEdgePort):
self.ports.append(
EdgePort(
(port_i := port_i + 1),
refp[port.refpoint],
port.resistance,
port.reactance,
port.inductance,
port.capacitance,
port.deembed_len,
port.face,
port.junction,
)
)
elif isinstance(port, WaveguideToSimPort):
towards = port.towards
if port.towards is None:
towards = f"{port.refpoint}_corner"
self.produce_waveguide_to_port(
refp[port.refpoint],
refp[towards],
(port_i := port_i + 1),
side=port.side,
a=port.a,
b=port.b,
term1=port.term1,
turn_radius=port.turn_radius,
use_internal_ports=port.use_internal_ports,
waveguide_length=port.waveguide_length,
face=port.face,
airbridge=port.airbridge,
)
elif isinstance(port, JunctionSimPort):
if self.separate_island_internal_ports:
self.ports.append(InternalPort((port_i := port_i + 1), refp[port.refpoint], face=port.face))
self.ports.append(InternalPort((port_i := port_i + 1), refp[port.other_refpoint], face=port.face))
else: # Junction between the islands
self.ports.append(
InternalPort(
(port_i := port_i + 1),
*self.etched_line(refp[port.refpoint], refp[port.other_refpoint]),
face=port.face,
inductance=self.junction_inductance,
capacitance=self.junction_capacitance,
junction=True,
)
)
return _build_for_element_class
[docs]
def get_single_element_sim_class(
element_class: Element,
ignore_ports: Optional[List[str]] = None,
transformation_from_center: Optional[Callable[[pya.Cell], pya.DTrans]] = None,
) -> Type[Simulation]:
"""Formulates a simulation class containing a single cell of a given Element class
Args:
element_class: an Element class for which a simulation class is returned
ignore_ports: If list of strings is given, simulation ports will not be created for the given
refpoints in the simulation class.
transformation_from_center: If None, simulated element is placed in the middle of simulation's box.
Otherwise should be a function that takes an element cell as argument and returns a DTrans object.
The returned transformation is applied to the element cell
after placing it in the middle of simulation's box.
The function should not cause any side-effects, i.e. change the cell parameters
"""
element_sim_class = type(
f"SingleElementSimulationClassFor{element_class.__name__}",
(Simulation,),
{
"separate_island_internal_ports": Param(
pdt.TypeBoolean,
"Add InternalPorts on both islands (if applicable). Use for capacitive simulations",
False,
),
"junction_inductance": Param(pdt.TypeList, "Junction inductance (if junction exists)", 11.497e-9, unit="H"),
"junction_capacitance": Param(pdt.TypeList, "Junction capacitance (if junction exists)", 0.1e-15, unit="F"),
"build": _get_build_function(element_class, ignore_ports, transformation_from_center),
},
)
add_parameters_from(element_class)(element_sim_class)
return element_sim_class