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vedaprabhu
Joined: 02 Aug 2006
Posts: 26
Helped: 2
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 25 Nov 2007 10:11 s to z parameter matrix |
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In such a case why worry about introducing s parameter matrix and so on ..smith chart...etc?!
one can directly apply the formula for getting s parameters once he knows Z and U matrix....
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shameemkabir
Joined: 31 Oct 2007
Posts: 389
Helped: 113
Location: Germany
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25 Nov 2007 12:42 Re: there is a relation connecting s parameters and z parame |
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It depends on your purpose whether you need S parameter or Z-parameter. If you want to look at the reflection why do you want to calculate Z first? Again, if you want to see resonance, it is better to see the Z-parameter (however, smith chart gives you the resonance).
One more point, many characteristics of HF are clear from smith chart, which cannot be directly seen from Z parameters.
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Azulykit
Joined: 18 Feb 2007
Posts: 851
Helped: 103
Location: All over the Map.
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27 Nov 2007 0:25 Re: there is a relation connecting s parameters and z parame |
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"Microwave Transistor Amplifiers, Analysis and Design" , Guillermo Gonzales ; section 1.9 relates the various scattering parameters. It has the relationships you seem to be seeking.
(I have only paper copies)
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27 Nov 2007 0:25 Ads |
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Grig
Joined: 03 Sep 2004
Posts: 227
Helped: 26
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27 Nov 2007 11:00 Re: there is a relation connecting s parameters and z parame |
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Hello
S=(Z-R)*(Z+R)^-1
Where Z-z-matrix, R-diag real matrix of wave impedances.
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