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plot passivity of s-凯发k8网页登录

plot passivity of s-parameters object

since r2019a

syntax

passivity(s)
[ns,violationindex] = passivity(s)

description

example

passivity(s) plots the passivity of s-parameter object, s over a range of frequencies specified in s.frequencies. passivity is measured by the two-norm of the frequency-dependent transfer function h(f).

[ns,violationindex] = passivity(s) plots the passivity and returns the data of the passivity plot.

examples

read the file, sawfilter.s2p.

s = sparameters('sawfilter.s2p');

plot the passivity of the 2-by-2 s-parameters.

passivity(s)

figure contains an axes object. the axes object with title data not passive, max norm(h) is 1 1.57e-01 at 2.4 ghz, xlabel frequency (ghz), ylabel norm(h) contains 4 objects of type line. one or more of the lines displays its values using only markers

input arguments

s-parameters, specified as an rf toolbox™ s-parameter function object. to create this type of object, use the sparameters function.

output arguments

two-norm transfer function h(f) at each frequency in s.frequencies, returned as a column vector.

data types: double

frequencies indices where passivity is violated (norm(h)>1), returned as a column vector.

data types: double

version history

introduced in r2019a

see also

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