lec01

lec01 - Upper MHz to GHz range-1-0.5 0.5 1 x-1-0.5 0.5 1 y...

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EE3113_L1 1 EE 3113 INTRODUCTION INTO RF CIRCUIT DESIGN Lecture Notes for A-term 1999 LECTURE 1 Prof. R. Ludwig Department of Electrical and Computer Engineering Worcester Polytechnic Institute Worcester, MA Copyright, 1998 © R. Ludwig
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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 600 MHz) Why this course??? – lumped circuit representation no longer applies!
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EE3113_L1 3 What do we mean by going from lumped to distributed theory? • Example: INDUCTOR Low-frequency (lumped) L j R Z w + = High-frequency Z = ?
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EE3113_L1 4 Current and voltage vary spatially over the component size
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Unformatted text preview: Upper MHz to GHz range-1-0.5 0.5 1 x-1-0.5 0.5 1 y 2 4 6 z E (or V) and H (or I) fields EE3113_L1 5 Frequency spectrum RadioFrequency (RF) TV, wireless phones, GPS 300 MHz 3 GHz operational frequency 1 m 10 cm wavelength in air MicroWave (MW) RADAR, remote sensing 8 GHz 40 GHz operational frequency 3.75 cm 7.5 mm wavelength in air EE3113_L1 6 Design Focus Cell phone transceiver circuit Typical frequency range: 950 MHz 1.9 GHz EE3113_L1 7 Implementation matching networks BJT/FET active devices biasing circuits printed circuit board mircostripline realization surface mount technology...
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This note was uploaded on 01/31/2012 for the course EE 4002 taught by Professor Scalzo during the Fall '06 term at LSU.

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lec01 - Upper MHz to GHz range-1-0.5 0.5 1 x-1-0.5 0.5 1 y...

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