LumpedElementFilter
rfnetwork.elements.LumpedElementFilter
- class rfnetwork.elements.LumpedElementFilter(fc, btype, prototype)
Bases:
DynamicNetworkParameters
- componentsdict
dictionary of Component objects where the keys are the reference designators.
- nodeslist
list of tuples, where each tuple is a group of component ports that are connected into a single node.
- cascadeslist
list of tuples, where each tuple is a group of components that are connected end to end, port 2 to port 1.
- probes: dict
dictionary of probe names to the component port they attach to. Probe voltage waves are defined as the wave leaving the component from the specified port. For example, dict(probe1=c1|1), would attach a probe to port 1 of the “c1” component. Probe names will appear in the coords of the “b” dimension of s-matrix data returned by evaluate.
- shuntbool, default: False
If True, port 2 is connected to ground and port 1 is transformed into a 2-port component that can be cascaded with other components.
- passivebool, default: True
if True,
evaluatecallsevaluate_sdatainstead ofevaluate_dataand noise correlation matrix is computed passively.- statedict, optional
dictionary of state variables specific to each component. Keys must be component designators. The state values can be read with the
stateproperty and changed later with set_state(). Attempting to set the state of variables that were not included in the initial dictionary will raise an error.
Methods
LumpedElementFilter.from_butterworth(fc, ...)Parameters fc1 float Lower 3 dB cutoff frequency [Hz] fc2 float Upper 3 db cutoff frequency [Hz] n int Filter order (1-10). Odd n will be matched to 50 ohms, while even n requires an impedance match.
LumpedElementFilter.from_chebyshev(fc, btype, n)Parameters fc1 float Lower 3 dB cutoff frequency [Hz] fc2 float Upper 3 db cutoff frequency [Hz] n int Filter order (1-10). Odd n will be matched to 50 ohms, while even n requires an impedance match. ripple float, default: 0.5 Passband ripple in dB
Attributes