mwavepy.media.freespace.Freespace

class mwavepy.media.freespace.Freespace(frequency, ep_r=1, mu_r=1, *args, **kwargs)

Represents a plane-wave in a homogeneous freespace, defined by the space’s relative permativity and relative permeability.

The field properties of space are related to a disctributed circuit transmission line model given in circuit theory by:

Circuit Property	Field Property
distributed_capacitance	real(ep_0*ep_r)
distributed_resistance	imag(ep_0*ep_r)
distributed_inductance	real(mu_0*mu_r)
distributed_conductance	imag(mu_0*mu_r)

This class’s inheritence is;

Media-> DistributedCircuit-> Freespace

Attributes

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

Methods

Z0	Characteristic Impedance,
__init__	Freespace initializer
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
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 ()
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.