clearEvaluationParameter
Delete one or more performance goals
Description
deletes one or more performance goals listed in mnobjupdated
= clearEvaluationParameter(mnobj
,indices
)indices
and
returns an updated matching network. Use getEvaluationParameters
to view performance specifications and find
each goal's index.
Examples
Matching Network from Dipole Antenna
Create a dipole antenna and create the S-parameters of the antenna. This example requires Antenna Toolbox.
d = dipole('Length', 0.103, 'Width',0.0022); freq = linspace(0.5e9,2.5e9,1001); sd = sparameters(d, freq);
Alternatively, load S-Parameters from the MAT file
% load('sparams_dipole.mat')
Create a matching network from the S-parameters.
n = matchingnetwork('LoadImpedance',sd,'Components',3,... 'LoadedQ',7,'CenterFrequency',2e9);
Get the evaluation parameters of the network.
t = getEvaluationParameters(n)
t=1×6 table
Parameter Comparison Goal Band Weight Source
_________ __________ ______ _________________________ ______ _____________
{'Gt'} {'>'} {[-3]} {[1.8571e+09 2.1429e+09]} {[1]} {'Automatic'}
Plot the reflection coefficient and transducer gain of the matching network circuit 1 , at a frequency range of 1 GHz to 2.5 GHz.
rfplot(n, (1e9:0.001e9:2.5e9),1);
Add a new evaluation parameter to compare the transducer gain to have a cut-off of less than -10 dB. Use a frequency range of 0.5 GHz to 1.5 GHz. Plot the comparisons.
n = addEvaluationParameter(n, 'Gt', '<', -10, [0.5e9 1.5e9], 1); t = getEvaluationParameters(n)
t=2×6 table
Parameter Comparison Goal Band Weight Source
_________ __________ _______ _________________________ ______ __________________
{'Gt'} {'>'} {[ -3]} {[1.8571e+09 2.1429e+09]} {[1]} {'Automatic' }
{'Gt'} {'<'} {[-10]} {[ 500000000 1.5000e+09]} {[1]} {'User-specified'}
rfplot(n, (1e9:0.001e9:2.5e9),1);
Clear evaluation parameters.
n = clearEvaluationParameter(n,1); t = getEvaluationParameters(n)
t=1×6 table
Parameter Comparison Goal Band Weight Source
_________ __________ _______ ________________________ ______ __________________
{'Gt'} {'<'} {[-10]} {[500000000 1.5000e+09]} {[1]} {'User-specified'}
Input Arguments
mnobj
— Matching network
matchingnetwork
object
Matching network, specified as a matchingnetwork
object.
Data Types: char
| string
indices
— Indices of matching network circuit
list
Indices of the matching network circuit, specified as a list.
Data Types: char
| string
Output Arguments
mnobjupdated
— Matching network updated according to evaluation parameters
matchingnetwork
object
Matching network updated according to evaluation parameters, returned as a
matchingnetwork
object.
Version History
Introduced in R2019a
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