HF Circuits and Measurement

Lecturer:

Tutor:

Supervisor:

Department of Radioelectronics

Synopsis:

The subject is aimed at high frequency circuits and measurement technique. It is intended first of all on study branch „Measurement technique“. In lectures special emphasis is put on methodology for design of HF circuits utilized in measurement applications. Conception of modern measurement equipment and char. of active and passive HF components are discussed as well. The exercises are in the laboratory.

Requirements:

Syllabus of lectures:

1. HF signals sources, stabilization of frequency and amplitude, sweeping

2. Disturbance sources, immunity of instruments to a disturbance, cross-talk, noise

3. Disturbance signals identification and measurement, elmag. susceptibility

4. Shielding, grounding, electromagnetic compatibility, EMC standards

5. Active and passive components of HF lumped circuits

6. Components of circuits involving distributed constants, TEM circuits

7. Models of active components of HF circuits

8. Application of broadband technology in HF devices

9. Instruments and systems for measurement of HF semiconductor devices

10. Instruments and systems for signal analysis, vector analysers

11. Circuits of HF instruments, splitter, direct. couplers, samplers, YIG resonators

12. Fibre optic circuit measurement

13. Modular instrument architecture, VXI bus

14. Design of HF broadband transformers and HF coils

Syllabus of tutorials:

1. Introduction to lab. exper., regulations for experimental work, safety regulations

2. Resonance method for determin. of the properties of components of RF circuits

3. Slotted line experiment, measurement VSWR, reflection coefficient

4. Measurement of piezoelectric resonator parameters

5. Vector measurements of high frequency networks, matching

6. Measurement of HF transistor scattering parameters (s11,s12,s21,s22)

7. RC osc. experiment (measurement of frequency, stability, harmonic distortion)

8. Design and measurement of antialiasig filter

9. Precise frequency measurement (long and short stability)

10. Oscilloscopes methods of signal parameters measurement

11. Modulation parameters measurement

12. LF and RF components measurement

13. Microwave component measurement (10 GHz frequency band)

14. Final evaluation, check and compensatory measurement

Study Objective:

Study materials:

[1] Egen, G.F.: Microwave Circuit Theory and Foundations of Microwave Metrology. Peter Peregrinus Ltd., . London 1992

[2] Coombs, C.F.Jr.,,ed.: Electronic Instrument. McGraw-Hill, Inc., NY 1994

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans:

• Radioelektronika - inženýrský blok (compulsory elective course)
• Radioelektronika - inženýrský blok (compulsory elective course)