资料介绍
III-1HOIII-1. The Smith Chart
Chapter III.
Matching Networks and Signal Flow Graphs
ICE651 MMIC Design
III-1-1
III-1. The Smith Chart
(1) The Smith Chart-(0)
Polar Chart for Reflection Coefficient
Γ0
-2βd
From note II-1-11 the input reflection coefficient for a load connected with a transmission line of electrical length, βd
ΓIN(d)
ΓIN ( d ) = Γ0 e 2 jβ d
(38 )
-positive angles are plotted counterclockwise
ICE651 MMIC Design
III-1-2
III-1. The Smith Chart
(1) The Smith Chart-(1)
Smith Chart
“A polar chart of Γ upon which a normalized Z grid has been superimposed, while for the sake of clarity the Γ grid has been removed.”
- Characteristics of the Smith Chart (1) All possible values of Z and Y can be plotted on the Γ-plane (2) Easy conversion of Z to Y(and vice versa) (3) Dete
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