skrf.media.distributedCircuit.DistributedCircuit

class skrf.media.distributedCircuit.DistributedCircuit(frequency, C, I, R, G, *args, **kwargs)

Generic, distributed circuit TEM transmission line

A TEM transmission line, defined in terms of distributed impedance and admittance values. A Distributed Circuit may be defined in terms of the following attributes,

Quantity	Symbol	Property
Distributed Capacitance		C
Distributed Inductance		I
Distributed Resistance		R
Distributed Conductance		G

From these, the following quantities may be calculated, which are functions of angular frequency ():

Quantity	Symbol	Property
Distributed Impedance		Z
Distributed Admittance		Y

From these we can calculate properties which define their wave behavior:

Quantity	Symbol	Method
Characteristic Impedance		Z0()
Propagation Constant		gamma()

Given the following definitions, the components of propagation constant are interpreted as follows:

Attributes

Y	Distributed Admittance,
Z	Distributed Impedance,
characteristic_impedance	Characterisitc impedance
propagation_constant	Propagation constant
z0	Port Impedance

Methods

Z0	Characteristic Impedance,
__init__	Distributed Circuit constructor.
capacitor	Capacitor
delay_load	Delayed load
delay_open	Delayed open transmission line
delay_short	Delayed Short
electrical_length	calculates the electrical length for a given distance, at
from_Media	Initializes a DistributedCircuit from an existing
from_csv	create a Media from numerical values stored in a csv file.
gamma	Propagation Constant,
guess_length_of_delay_short	Guess physical length of a delay short.
impedance_mismatch	Two-port network for an impedance miss-match
inductor	Inductor
line	Matched transmission line of given length
load	Load of given reflection coefficient.
match	Perfect matched load ().
open	Open ()
resistor	Resistor
short	Short ()
shunt	Shunts a Network
shunt_capacitor	Shunted capacitor
shunt_delay_load	Shunted delayed load
shunt_delay_open	Shunted delayed open
shunt_delay_short	Shunted delayed short
shunt_inductor	Shunted inductor
splitter	Ideal, lossless n-way splitter.
tee	Ideal, lossless tee.
theta_2_d	Converts electrical length to physical distance.
thru	Matched transmission line of length 0.
white_gaussian_polar	Complex zero-mean gaussian white-noise network.
write_csv	write this media’s frequency, z0, and gamma to a csv file.