lec26

lec26 - 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 26 Prof. R. Ludwig epartment of Electrical and Computer Engineering Worcester Polytechnic Institute Worcester, MA 01609 copyright 2003, R. Ludwig opyright, 1998 R. Ludwig EE3113_L26 2 RF Amplifier Design Project Amplifier design passive bias network stability analysis of BJT (k-factor) no feed-back (S 12 =0) -> unilateral design class A (low-efficiency) BJT configuration S-parameter description (given bias, frequency) discrete, two-element matching networks EE3113_L26 3 Results of constant gain analysis 0.2 0.5 1.0 2.0 5.0 +0.2-0.2 +0.5-0.5 +1.0-1.0 +2.0-2.0 +5.0-5.0 0.0 -1dB 0dB 0.2dB S opt =S 11 * 0.2 0.5 1.0 2.0 5.0 +0.2-0.2 +0.5-0.5 +1.0-1.0 +2.0-2.0 +5.0-5.0 0.0 -1dB 0dB 0.5dB L opt =S 22 * Input gain circles Output gain circles EE3113_L26 4 Required Matching Networks 0.2 0.5 1.0 2.0 5.0 +0.2-0.2 +0.5-0.5 +1.0-1.0 +2.0-2.0 +5.0-5.0 0.0 0.2dB 0.2 0.5 1.01....
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lec26 - EE 3113 INTRODUCTION TO RF CIRCUIT DESIGN Lecture...

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