MİCROWAVE AMPLIFIERS

AIM

This course provides an advanced study of microwave amplifier design, analysis, and optimization. Topics include transistor models, amplifier classifications, matching networks, stability analysis, nonlinear effects, gain definitions, broadband amplifiers, low-noise amplifiers, power amplifiers, and advanced amplifier concepts.

CONTENT

This course contains; Introduction to Microwave Amplifiers, Overview of Microwave Amplifiers, Importance in Communication Systems,Practical Transmission Lines, Waveguide, Co-axial cable, Twisted pair, Microstrip, Microstrip discontinuities, Stripline, Coplanar waveguide,Microwave Network Parameter, Z, Y, ABCD Parameters, S, T parameters, Convertion between themselves.,Stability Analysis and Gain in Microwave Amplifiers, Stability Criteria, K-factor and Circle Fit Stability Analysis, Feedback Networks for Stability Enhancement, Negative Feedback Techniques,Multiport S-parameters, Three-port immittance parameters, Three-port S-parameters, Configuration conversion,Feedback mappings, Application of three-port design techniques,Matching Networks and Impedance Transformation, Impedance Matching Techniques, Lumped Matching, Distributed Matching, Smith Chart Applications, Broadband Matching Networks, Input and Output Impedance Transformation,Microwave Semiconductor Materials and Diodes, Choice of microwave semiconductor materials, Microwave Semiconductor fabrication technology, The pn-junction, Microwave diodes,The IMPATT diode family,Microwave Transistors and MMICs, Small-signal and Large-signal Models, Microwave Bipolar Junction Transistors, Heterojunction Bipolar Transistor (HBT), Microwave Field Effect transistors, MESFET and HEMT equivalent circuit, Monolithic Microwave Integrated Circuits (MMICs), MMIC Circuit elements,Amplifier Classifications and Configurations, Class A, B, C, AB, and D Amplifiers, Common Emitter, Common Base, Common Collector Configurations, Push-Pull and Cascode Configurations,Broadband Microwave Amplifiers and Design Project Kickoff, Broadband Amplifier Design Considerations, Cascode and Distributed Amplifiers, Noise Figure and Power Gain in Broadband Amplifiers, Introduction to Design Project Requirements, Group Formation and Topic Selection,Low-Noise Amplifiers (LNA) and Design Project Work, LNA Design Principles, Noise Figure and Gain Optimization, Matching Techniques for LNAs, Consultations and Feedback on Design Projects, Active, passive and hybrid source-pull measurement techniques,Power Amplifiers (PA), PA Design Considerations, Efficiency and Power Gain Optimization, Class A, B, and C Power Amplifiers, Active, passive and hybrid load-pull measurement techniques,Linearization of Microwave Amplifiers, Linearization Techniques for Power Amplifiers, Adaptive Biasing, Digital Pre-distortion,Recent Advances in Microwave Amplifiers and Design Project Work, Emerging Technologies, Advanced Materials in Amplifier Design, Applications in Communication Systems, Student Research Project Presentations.

1. 1

   Acquire a foundational understanding of microwave amplifier concepts and their importance in communication systems.

   Taught by: Project Based Learning Model, Simulation Technique, Lecture Method · Assessed by: Homework, Project Task

2. 2

   Generate simulations for various practical transmission lines such as waveguide, coaxial cable, twisted pair, microstrip, microstrip discontinuities, stripline, and coplanar waveguide.

   Taught by: Problem Solving Method, Self Study Method, Project Based Learning Model, Simulation Technique, Lecture Method · Assessed by: Homework, Project Task

3. 3

   Analyze microwave network parameters, including Z, Y, ABCD parameters, and S, T parameters.

   Taught by: Project Based Learning Model, Simulation Technique, Lecture Method · Assessed by: Homework, Project Task

4. 4

   Perform stability analysis using criteria, K-factor, and Circle Fit Stability Analysis, and gain calculations in microwave amplifiers.

   Taught by: Project Based Learning Model, Simulation Technique, Lecture Method · Assessed by: Homework, Project Task

5. 5

   Understands multi-port S-parameters, three-port privilege parameters and configuration conversion.

   Taught by: Problem Solving Method, Self Study Method, Project Based Learning Model, Simulation Technique, Lecture Method · Assessed by: Homework, Project Task

6. 6

   Perform impedance matching using lumped and distributed techniques by utilizing Smith Chart. These can be narrow band of broadband matching networks for input and output impdance transformation.

   Taught by: Self Study Method, Project Based Learning Model, Simulation Technique, Lecture Method · Assessed by: Homework, Project Task

7. 7

   Acquire fundamental knowledge in the choice of microwave semiconductor materials, microwave semiconductor fabrication technology, and the operation of pn-junctions and the IMPATT diode family.

   Taught by: Discussion Method, Problem Solving Method, Self Study Method, Project Based Learning Model, Simulation Technique, Lecture Method · Assessed by: Homework, Project Task

8. 8

   Mikrodalga transistörlerin küçük sinyal ve büyük sinyal modellerini, S-parametrelerini ve Microwave Bipolar Junction Transistors (BJT'ler), Heterojunction Bipolar Transistors (HBT'ler) ve Microwave Field Effect Transistors (FET'ler) dahil olmak üzere MESFET ve HEMT de içeren mikrodalga transistörlerin doğrusal olmayan etkilerini, özelliklerini ve eşdeğer devrelerini öğrenir.

   Taught by: Problem Solving Method, Self Study Method, Brainstorming Technique, Project Based Learning Model, Simulation Technique, Lecture Method · Assessed by: Homework, Project Task

WEEKLY PLAN

1. WEEK 1

   Introduction to Microwave Amplifiers, Overview of Microwave Amplifiers, Importance in Communication Systems

   Preparation: Lecture Notes and Related Book Chapter

2. WEEK 2

   Practical Transmission Lines, Waveguide, Co-axial cable, Twisted pair, Microstrip, Microstrip discontinuities, Stripline, Coplanar waveguide

   Preparation: Lecture Notes and Related Book Chapter

3. WEEK 3

   Microwave Network Parameter, Z, Y, ABCD Parameters, S, T parameters, Convertion between themselves.

   Preparation: Lecture Notes and Related Book Chapter

4. WEEK 4

   Stability Analysis and Gain in Microwave Amplifiers, Stability Criteria, K-factor and Circle Fit Stability Analysis, Feedback Networks for Stability Enhancement, Negative Feedback Techniques

   Preparation: Lecture Notes and Related Book Chapter

5. WEEK 5

   Multiport S-parameters, Three-port immittance parameters, Three-port S-parameters, Configuration conversion,Feedback mappings, Application of three-port design techniques

   Preparation: Lecture Notes and Related Book Chapter

6. WEEK 6

   Matching Networks and Impedance Transformation, Impedance Matching Techniques, Lumped Matching, Distributed Matching, Smith Chart Applications, Broadband Matching Networks, Input and Output Impedance Transformation

   Preparation: Lecture Notes and Related Book Chapter

7. WEEK 7

   Microwave Semiconductor Materials and Diodes, Choice of microwave semiconductor materials, Microwave Semiconductor fabrication technology, The pn-junction, Microwave diodes,The IMPATT diode family

   Preparation: Lecture Notes and Related Book Chapter

8. WEEK 8

   Microwave Transistors and MMICs, Small-signal and Large-signal Models, Microwave Bipolar Junction Transistors, Heterojunction Bipolar Transistor (HBT), Microwave Field Effect transistors, MESFET and HEMT equivalent circuit, Monolithic Microwave Integrated Circuits (MMICs), MMIC Circuit elements

   Preparation: Lecture Notes and Related Book Chapter

9. WEEK 9

   Amplifier Classifications and Configurations, Class A, B, C, AB, and D Amplifiers, Common Emitter, Common Base, Common Collector Configurations, Push-Pull and Cascode Configurations

   Preparation: Lecture Notes and Related Book Chapter

10. WEEK 10

    Broadband Microwave Amplifiers and Design Project Kickoff, Broadband Amplifier Design Considerations, Cascode and Distributed Amplifiers, Noise Figure and Power Gain in Broadband Amplifiers, Introduction to Design Project Requirements, Group Formation and Topic Selection

    Preparation: Lecture Notes and Related Book Chapter

11. WEEK 11

    Low-Noise Amplifiers (LNA) and Design Project Work, LNA Design Principles, Noise Figure and Gain Optimization, Matching Techniques for LNAs, Consultations and Feedback on Design Projects, Active, passive and hybrid source-pull measurement techniques

    Preparation: Lecture Notes and Related Book Chapter

12. WEEK 12

    Power Amplifiers (PA), PA Design Considerations, Efficiency and Power Gain Optimization, Class A, B, and C Power Amplifiers, Active, passive and hybrid load-pull measurement techniques

    Preparation: Lecture Notes and Related Book Chapter

13. WEEK 13

    Linearization of Microwave Amplifiers, Linearization Techniques for Power Amplifiers, Adaptive Biasing, Digital Pre-distortion

    Preparation: Lecture Notes and Related Book Chapter

14. WEEK 14

    Recent Advances in Microwave Amplifiers and Design Project Work, Emerging Technologies, Advanced Materials in Amplifier Design, Applications in Communication Systems, Student Research Project Presentations

    Preparation: Lecture Notes and Related Book Chapter

ASSESSMENT

• Rate of Midterm Exam to Success50%
• Rate of Final Exam to Success50%

WORKLOAD

READING

• Microwave Transistor Amplifiers: Analysis and Design by Guillermo Gonzalez Microwave Active Circuit Analysis and Design by Clive Poole, Izzat Darwazeh
• 1. RF and Microwave Transistor Oscillator Design by Andrei Grebennikov 2. High-Frequency Amplifiers by Helge Granberg

TEACHING STAFF

• Assoc.Prof. Hüseyin Şerif SAVCICOORDINATOR
• Assoc.Prof. Hüseyin Şerif SAVCI