kqcircuits.util.refpoints¶
- class kqcircuits.util.refpoints.Refpoints(layer, cell, trans, rec_levels)[source]¶
Bases:
object
Helper class for extracting reference points from given layer and cell.
Once Refpoints is initialized, it can be used similar way as dictionary, where reference point text (string) field is the key and reference point position (pya.DPoint) is the value.
Refpoints is implemented such that the dictionary is extracted from given layer and cell only when it’s used for the first time. Extracting the dictionary can be relatively time-demanding process, so this way we can speed up the element creation process in KQC.
- layer¶
layer specification for source of reference points
- cell¶
cell containing the reference points
- trans¶
transform for converting reference points into target coordinate system
- rec_levels¶
recursion level when looking for reference points from subcells. Set to 0 to disable recursion.
- class kqcircuits.util.refpoints.RefpointToSimPort(refpoint, face=0)[source]¶
Bases:
object
Class that takes a refpoint of an Element class with given string and places appropriate Simulation port(s) at the refpoint’s location if the simulation object was instantiated using the get_single_element_sim_class class builder.
- refpoint¶
Refpoint name string
- face¶
index of the face where the refpoint is located
- class kqcircuits.util.refpoints.RefpointToInternalPort(refpoint, ground_refpoint, resistance=50, reactance=0, inductance=0, capacitance=0, face=0, junction=False, signal_layer='signal')[source]¶
Bases:
kqcircuits.util.refpoints.RefpointToSimPort
Creates an InternalPort at refpoint with given string
- class kqcircuits.util.refpoints.RefpointToEdgePort(refpoint, resistance=50, reactance=0, inductance=0, capacitance=0, face=0, deembed_len=None, junction=False)[source]¶
Bases:
kqcircuits.util.refpoints.RefpointToSimPort
Creates an EdgePort at refpoint with given string
- class kqcircuits.util.refpoints.WaveguideToSimPort(refpoint, face=0, towards=None, side=None, use_internal_ports=None, waveguide_length=None, term1=0, turn_radius=None, a=None, b=None, over_etching=None, airbridge=False)[source]¶
Bases:
kqcircuits.util.refpoints.RefpointToSimPort
A waveguide is created leading to the port at the refpoint with given string in the Simulation object
- refpoint¶
Refpoint name string
- face¶
index of the face where the refpoint is located
- towards¶
Another refpoint name string towards which direction the waveguide will extend. If set to None, will default to “{refpoint}_corner”
- side¶
Indicate on which edge the port should be located. Ignored for internal ports. Must be one of left, right, top or bottom
- use_internal_ports¶
if True, ports will be inside the simulation. If False, ports will be brought out to an edge of the box, determined by side. Defaults to the value of the use_internal_ports parameter
- waveguide_length¶
length of the waveguide (μm), used only for internal ports Defaults to the value of the waveguide_length parameter
- term1¶
Termination gap (μm) at the location of refpoint
- turn_radius¶
Turn radius of the waveguide. Not relevant for internal ports. Defaults to the value of the r parameter
- a¶
Center conductor width. Defaults to the value of the a parameter
- b¶
Conductor gap width. Defaults to the value of the b parameter
- over_etching¶
Expansion of gaps. Defaults to the value of the over_etching parameter
- airbridge¶
if True, an airbridge will be inserted at location of the refpoint. Default False
- class kqcircuits.util.refpoints.JunctionSimPort(refpoint='port_squid_a', other_refpoint='port_squid_b', face=0)[source]¶
Bases:
kqcircuits.util.refpoints.RefpointToSimPort
Creates internal ports for a junction in the Simulation object.
Depending on the value of the separate_island_internal_ports parameter, will either create two internal ports at both ends of the junction, or one port that covers both junctions.
- refpoint¶
Refpoint name string. Defaults to “port_squid_a” as most commonly used junction port name
- other_refpoint¶
Refpoint name string of the other end of the junction Defaults to “port_squid_b” as most commonly used junction port name
- face¶
index of the face where the refpoint is located
