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Design >> RF Design >> About S-parameter definition in Spectre
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Message started by Julian18 on Jul 3^rd, 2007, 8:15pm

Title: About S-parameter definition in Spectre
Post by Julian18 on Jul 3^rd, 2007, 8:15pm

Hi, there
Question about the s-param definition of spectre.
In one of the cds application notes, it says: spectre normalizes the LNA scattering mattrix with respect to the source and load port resistance. Therefore, the source reflection coefficient Γ_s and Γ_l are both zero.
I dont understand this statement. can anyone here give me a explaination or,if possible, give me a brief derivation.

TIA.