Active Microwave Circuits

Lecturer:

Karel Hoffmann (gar.), Přemysl Hudec

Tutor:

Karel Hoffmann (gar.), Přemysl Hudec

Supervisor:

Department of Electromagnetic Field

Synopsis:

Subject deals with CAD tools for microwave circuits design. Microwave transistors, bipolar, MESFET and HEMPT. Narro-band and wide-band amplifier basic parameters. Narrow and wide-band amplifier design. Low noise and power design. Microwave diode and transistor oscillators. Small and large signal design of microwave circuits using CAD tools. Microwave detectors. Mixers, one diode and balanced.

Requirements:

Basic knowledge of microwaves. http://www.elmag.org

Syllabus of lectures:

1. Introduction, CAD tools for AMO

2. Structures of microwave transistors, bipolar, MESFET and HEMPT

3. Basic parameters of amplifiers

4. Design of narrowband amplifiers

5. Design of wideband amplifiers

6. Design of low noise and power amplifiers

7. Microwave diode oscillators

8. Frequency and power jumps, realizations

9. Microwave transistor oscillators

10. Small and large signal design. Realizations

11. Hf. and microwave detectors. Basic theory and parameters

12. Hf. and microwave mixers. Basic theory and realizations

13. One diode mixers and balanced mixers

14. Multipliers and limiters

Syllabus of tutorials:

1. Scattering parameters of microwave transistors

2. Basic parameters of microwave transistors

3. Analysis of microwave amplifiers

4. Optimization of microwave amplifiers. Project 1 and Project 2

5. Project 1 realization

6. Project 2 realization

7. Introduction to the software MIDE

8. Project 3. Monofrequency Gunn oscillators

9. Project 3 realization

10. Project 4. Tunable Gunn oscillator

11. Project 4 realization

12. Project 5. Microwave transistor oscillator

13. Project 5 realization

14. Inspection of the projects records. Credit

Study Objective:

Study materials:

1. Vendelin,G.D.: Design of Amplifiers and Oscillators by S-parameter Method. John Wiley, 1982

2. Soares,R.: Graffeuil,J., Obregou,J.: Applications of GaAs MESFETs. Artech House, 1983

3. Maas,S.A.: Microwave Mixers. Artech House, 1995

Note:

Time-table for winter semester 2011/2012:

Time-table is not available yet

Time-table for summer semester 2011/2012:

Time-table is not available yet

The course is a part of the following study plans:

• Telecommunications and Radio-engineering - High-frequency and Microwave Technology- structured studi (compulsory course)