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lec1 - EE 3113 INTRODUCTION TO RF CIRCUIT DESIGN Lecture...

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Unformatted text preview: EE 3113 INTRODUCTION TO RF CIRCUIT DESIGN Lecture Notes for A-term 2003 LECTURE 1 Prof. R. Ludwig epartment of Electrical and Computer Engineering Worcester Polytechnic Institute Worcester, MA copyright © 2003, R. Ludwig opyright, 1998 © R. Ludwig EE3113_L1 2 EE 3113: Lecture 1 • Importance of RF circuit design – wireless communications (explosive growth of cell phones) – global positioning systems (GPS) – computer engineering (bus systems, CPU, peripherals exceeding 1 GHz) – “ At high frequency all digital circuits become distributed analog systems ” Dr. R. Carley, IC_Mechanics • Why this course??? – lumped circuit representation no longer applies! EE3113_L1 3 What do we mean by going from lumped to distributed theory? • E x a m p l e : INDUCTOR Low-frequency (lumped) L j R Z ω + = High-frequency Z = ? EE3113_L1 4 Current and voltage vary spatially over the component size Upper MHz to GHz range-1-0.5 0.5 1 x-1-0.5 0.5 1 y 2 4 6 z-1-0.5 0.5 1 x E (or V) and H (or I) fields EE3113_L1...
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  • Fall '06
  • Scalzo
  • Prof. R. Ludwig Department of Electrical and Computer Engineering Worcester Polytechnic Institute Worcester, RF Circuit Design, GHz operational frequency

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lec1 - EE 3113 INTRODUCTION TO RF CIRCUIT DESIGN Lecture...

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