资料介绍
网络分析仪 CONTENTS
Smith Chart S-Parameters
Transmission Line Theory
I Low frequencies z Wavelength >> wire length z Current (I) travels down wires easily for efficient power transmission z Voltage and current not dependent on position
High frequencies z Wavelength ≈ or << wire (transmission line) length z Need transmission-line structures for efficient power transmission z Matching to characteristic impedance (Z0) is very important for low reflection z Voltage dependent on position along line
Transmission Line Theory
Transmission Line Theory R: series resistance per unit length L: series inductance per unit length G: shunt conductance per unit length C: shunt capacitance per unit length R & G Ní loss dielectric loss finite conductivity
Transmission Line Theory
Z in
V0+ e
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