Documentation

This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English verison of the page.

Note: This page has been translated by MathWorks. Please click here
To view all translated materals including this page, select Japan from the country navigator on the bottom of this page.

RF Analysis

Reflection coefficients, de-embedding, transfer functions, rational function fitting, VSWR, stability factors, passivity

RF Toolbox™ functions enable you to calculate input and output reflection coefficients, compute stability factors, de-embed S-parameters and perform other RF analysis tasks. You can also perform noise figure calculations and find third-order intercept points for cascaded networks.

To compute transfer functions and fit the transfer function to closed form, use rationalfit. Then use this result to model single-ended and differential high-speed transmission lines.

You can also perform budget analysis of RF networks using RF Budget Analyzer.

Apps

RF Budget AnalyzerAnalyze gain, noise figure, and IP3 of cascaded RF elements and export to RF Blockset

Using Objects

rfbudgetCreate RF budget object and compute RF budget results
rfmodel.rationalStore output power and phase information for amplifiers or mixers

Functions

gamma2zConvert reflection coefficient to impedance
gammainInput reflection coefficient of 2-port network
gammamlLoad reflection coefficient of 2-port network
gammaoutOutput reflection coefficient of 2-port network
gammamsSource reflection coefficient of 2-port network
z2gammaConvert impedance to reflection coefficient
sparametersS-parameter object
deembedsparamsDe-embed 2N-port S-parameters
s2tfConvert S-parameters of 2-port network to voltage or power-wave transfer function
powergainPower gain of 2-port network
rationalfitApproximate data using stable rational function object
freqrespFrequency response of rational function object
impulseImpulse response for rational function object
steprespStep-signal response of rational function object
timerespTime response for rational function object
vswrVSWR at given reflection coefficient Γ
groupdelayGroup delay of s-parameter object or RF Toolbox network object
stabilitykStability factor K of 2-port network
stabilitymuStability factor μ of 2-port network
ispassiveCheck passivity of N-port S-parameters
makepassiveMake N-port S-parameters passive
rfmodel.rational.ispassiveCheck passivity of scalar rational function object
analyzeAnalyze circuit object in frequency domain
rfinterp1Interpolate network parameter data at new frequencies
calculateCalculate specified parameters for circuit object
extractExtract array of network parameters from data object
rftoolOpen RF Analysis Tool (RF Tool)

Classes

OpenIFFind open intermediate frequencies (IFs) in multiband transmitter or receiver architecture

Topics

Model RF Objects Using Verilog-A

Describes Verilog-A, the type of model you can export, and what you can do with the exported model.

Analyze Circuits

Describes setting parameters for circuit analysis and perform the analysis.

Was this topic helpful?