EE3113_A2009_L10

EE3113_A2009_L10 - 1 1 d e d e d d z Y Y y j j in in in 180...

This preview shows pages 1–6. Sign up to view the full content.

ECE 3113 INTRODUCTION TO RF CIRCUIT DESIGN Lecture Notes for A-term 2009 LECTURE 10 Prof. R. Ludwig Department of Electrical and Computer Engineering Worcester Polytechnic Institute Worcester, MA 01609 copyright © 2009, R. Ludwig Copyright, 1998 © R. Ludwig

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
ECE3113_L10 2 Objectives • How is the Smith Chart adjusted to display admittances? • What is the ZY-Chart? • How do you read off admittances and corresponding impedances for the same reflection coefficient?
ECE3113_L10 3 Admittance Transformation (Smith Chart) • impedance representation in Smith Chart 0 ) ( 1 ) ( 1 d d jx r z in • admittance representation in Smith Chart ) ( 1 ) ( 1 ) ( 1 )

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ( 1 1 d e d e d d z Y Y y j j in in in 180 degree phase shift ECE3113_L10 4 Transformation 2 1 2 1 1 1 j y j z in in ECE3113_L10 5 Alternative: re-interpretation Instead of rotating the reflection coefficient about 180 degree, we keep the location fixed and rotate the entire Smith Chart by 180 degree.---ECE3113_L10 6 Re-interpretation leads to ZY-Smith Chart The Smith Chart in its original form is kept for impedance display, but a second Smith Chart is rotated by 180 degree for admittance display....
View Full Document

This note was uploaded on 10/13/2009 for the course ECE 3113 taught by Professor Ludwig during the Spring '09 term at WPI.

Page1 / 6

EE3113_A2009_L10 - 1 1 d e d e d d z Y Y y j j in in in 180...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online