The document discusses the design of two single-stage RF amplifiers at a center frequency of 22 GHz with a gain greater than 9 dB and input/output return losses greater than 15 dB. One design uses lumped elements while the other uses distributed transmission lines. The design process involves input and output matching networks to maximize power transfer as well as bias circuits. Both designs are modeled and analyzed using circuit simulation software.

1. RF Amplifier Design
By Katherine Quinn

2. Objective:
Design two single-stage RF amplifiers, one design using lumped-element components (Inductors and
Capacitors), and another design using distributive transmission lines.
Design Goals:
 Center frequency 22 GHz
 Gain >9 dB
 Input return loss >15 dB
 Output return loss >15 dB
RF Amplifier:
An RF Amplifier is a tuned amplifier that amplifies high frequency signals that are used in radio
communications.
Block Diagram Concept:
Design Procedure:
 Design using operating power gain
Perform Simultaneous conjugate matching from the output to the conjugate of the input.
 Design using available power gain
Perform Simultaneous Conjugate Matching from the input to the conjugate of the output.

3. RF Amplifier Designs
Lumped Element Design Using Dr. Frensley's software
Input Matching Network: Output Matching Network:
Component Values: Component Values:
Circuit Design: Bias Circuit:
RF Performance Plot:

4. Distributed Transmission Line Design Using Frensley's Software
Input Matching Network: Output Matching Network:
Transmission Line Values: Transmission Line Values:
Transmission Line Length Calculations:
*
Circuit Design: Bias Circuit:
RF Performance Plot:
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5. Lumped Element Design Using AWR
Instantaneous Conjugate Match:
Circuit Design: Bias Circuit:
RF Performance Plot:

6. Distributive Transmission Line Design Using AWR:
Circuit Design: Bias Circuit:
Transmission Line Length Calculations: Bias Line Length Calculations:
RF Performance Chart:
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