06 07 Network lec16 - A A a b T T T T T T T T b a 2 2 22 21...

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EE3113_L16 1 EE 3113 INTRODUCTION INTO RF CIRCUIT DESIGN Lecture Notes for A-term 1999 LECTURE 16 Prof. R. Ludwig Department of Electrical and Computer Engineering Worcester Polytechnic Institute Worcester, MA 01609 copyright © 1999, R. Ludwig Copyright, 1998 © R. Ludwig
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EE3113_L16 2 Working with S-parameters • For network computations it is easier to convert from the S-matrix representation to the chain scattering matrix notation = 2 1 22 21 12 11 2 1 a a S S S S b b = 2 2 22 21 12 11 1 1 a b T T T T b a . , , 1 21 11 21 21 11 etc S S T S T = =
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EE3113_L16 3 • Advantage: cascading just like in the ABCD form = B B B B B B A A A A
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Unformatted text preview: A A a b T T T T T T T T b a 2 2 22 21 12 11 22 21 12 11 1 1 EE3113_L16 4 Signal flow chart computations Complicated networks can be efficiently analyzed in a manner identical to signals and systems and control. in general EE3113_L16 5 Arrangement for flow-chart analysis G G S V Z Z Z b + = EE3113_L16 6 Analysis of most common circuit S b a 1 Determination of the ratio EE3113_L16 7 Important issue: what happens to the S 11 parameter if port 2 is not properly terminated? L L in S S S S a b Γ Γ-+ = = Γ 22 21 12 11 1 1 1 Note: Only Γ L = 0 ensures that the S 11 can be measured!...
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This note was uploaded on 12/19/2009 for the course ELECTRONIC elm 421 taught by Professor Arifergin during the Fall '09 term at Gebze Institute of Technology.

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06 07 Network lec16 - A A a b T T T T T T T T b a 2 2 22 21...

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