Calculate noise figure of transmission lines, series RLC, and shunt RLC circuits
nf = noisefigure(
calculate the noise figure of transmission lines using the given frequency and source
Group Delay and Noise Figure of Two-Wire Transmission Line
Create a two-wire transmission line using these specifications:
Radius - 0.5 mm
Dielectric - air
Thickness of dielectric or separation - 1.088 mm
twowiretxline = txlineTwoWire('Radius',0.5e-3,'EpsilonR',1.0054,'Separation',1.088e-3);
Calculate the noise figure and the group delay of the transmission line at 2.5 GHz.
nf = noisefigure(twowiretxline,2.5e9)
nf = 0
gd = groupdelay(twowiretxline,2.5e9)
gd = 3.3446e-11
transmissionline — Transmission line
Transmission line, specified as any one of these objects:
RLCckt — Series or shunt RLC circuit objects
seriesRLC object |
Series or shunt RLC circuit objects, specified as a
frequency — Frequency to calculate noise figure
Frequency to calculate noise figure, specified as a positive scalar in hertz.
zs — Source impedance
50 (default) | positive real scalar
Source impedance, specified as a positive real scalar in ohms.
Version HistoryIntroduced in R2020b
R2023a: Calculate noise figure of transmission line limped element
calculate the noise figure of the transmission line limped element.