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EE3113_A2009_L8

# EE3113_A2009_L8 - 1 1 1 1 i r d j j j e e d L 2 | | 2 2 2 2...

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ECE3113_L8 ECE 3113 INTRODUCTION TO RF CIRCUIT DESIGN Lecture Notes for A-term 2009 LECTURE 8 Prof. R. Ludwig Department of Electrical and Computer Engineering Worcester Polytechnic Institute Worcester, MA 01609 copyright © 2009, R. Ludwig Copyright, 1998 © R. Ludwig

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ECE3113_L8 Objectives What is the meaning of the Smith Chart? How is the normalized resistance displayed? How is the normalized reactance displayed?
ECE3113_L8 From Reflection Coefficient to Load Impedance (Smith Chart) Reflection coefficient in phasor form L j i r L L e j Z Z Z Z | | 0 0 0 0 0 0 The load reflection coefficient is identified in the complex domain 0

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ECE3113_L8 Normalized impedance i r i r in in j j d d jx r z Z d Z

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Unformatted text preview: 1 1 ) ( 1 ) ( 1 / ) ( i r d j j j e e d L 2 | | ) ( 2 2 2 2 ) 1 ( 1 i r i r r 2 2 ) 1 ( 2 i r i x Real part of normalized impedance Imaginary part of normalized impedance ECE3113_L8 Inversion of complex reflection coefficient (constant normalized resistance) 2 2 2 ) 1 1 ( ) 1 ( r r r i r ECE3113_L8 Inversion of complex reflection coefficient (constant normalized reactance) 2 2 2 ) 1 ( ) 1 ( ) 1 ( x x i r ECE3113_L8 Combined display: Smith Chart...
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EE3113_A2009_L8 - 1 1 1 1 i r d j j j e e d L 2 | | 2 2 2 2...

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