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Low Freq Common-Emitter BJT Model

•Model is the hybrid- BJT model where rBE = r , rBC = r , and rCE = ro

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ABCD Parameters of Some Circuits

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Conversion Between Network Reps

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Microwave Amplifier Subnetworks

• Amplifier is separated into subnetworks

• dd all subnetworks together for complete amplifier design

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High Frequency BJT Model

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S-Parameter Computation for T-Network

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Signal Flow Diagrams

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Signal Flow: Terminated Transmission Line

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Signal Flow: Building Blocks

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Signal Flow: Terminated Two Port

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Signal Flow: Simplification

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Signal Flow: Simplification – Con’t 1

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Signal Flow: Simplification – Resultant

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Signal Flow: Terminated Transmission Line

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Measuring S11 & S21

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S-Parameter Measurement Signal Flow

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TRL Calibration Method

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TRL Calibration Method – Con’t