Electric Filters

The course is a substitute for:

Electric Filters (X31EFI)

Lecturer:

Tutor:

Supervisor:

Department of Circuit Theory

Synopsis:

A survey of passive- and active filter design and implementation is given by this subject. A practical design conditions and problems are emphasized. The first part deals with optimum-design of passive-LC filters. A particular part is devoted to the crystal- and SAW filters. In the following, the optimum design of 2nd-order and higher- order active RC filters is presented and design constraints are discussed. Practical design examples are solved.

Requirements:

Syllabus of lectures:

1. Electric filters - a survey. Typical applications. Filter parameters specification

2. Application criteria. Approximation problem solution.

3. Passive LC filters: design and optimization. Influence of lossess

4. LC filter structure optimization procedures, tunning

5. High-frequency filters, crystal and SAW filters

6. Passive RC filters: configurations and design procedures

7. ARC filters - a survey. Filter structures, optimum design criteria,

8. Optimum design of 2nd-order ARC filters. Design constraints with respect to non-ideal active devices.

9. Higher order ARC filters, sensitivity constraints

10. ARC filter design based on special building blocks. Current-mode filters

11. Design optimization, new ways of ARC filter construction, Fully integrated filters

12. Discrete-time filters, Switched-Capacitor filters, tunable filters.

13. Filters for power and impulse systems.

14. New trends in analog filter design.

Syllabus of tutorials:

1. Examples of filter applications, parameter specification

2. Approximation methods, filter data catalogues and software

3. A design of passive LC filters, losses simulation

4. LC filter design optimization, non-standard operating conditions

5. Filter group-delay optimization, phase-equalizer design

6. A design of passive RC filters, frequency response simulation

7. An optimum design of 2nd-order ARC filter

8. A design of higher-order ARC filters - LC ladder simulation

9. A design of OTA-C filters, design simulation

10. An optimum cascade realizations of higher-order filters

11. A design optimization with respect to the amplifier GBW product

12. Integrated SC filters, a design based on universal 2nd-order blocks

13. A measurement of the SC filters designed

14. A presentation of individual semestral works

Study Objective:

Study materials:

1. Mitra, S.K., Kurth, C.F.: Miniaturized and Integrated Filters. John Wiley, 1989

2. Schaumann, R., Ghausi, M.S., Laker, K.R.: Design of Analog Filters. Prentice Hall, 1990

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans:

• Elektronika a sdělovací technika-bakalářský blok (compulsory elective course)
• Elektronika a sdělovací technika-bakalářský blok (compulsory elective course)