Electric Filters
Code | Completion | Credits | Range | Language |
---|---|---|---|---|
XE31EFI | Z,ZK | 4 | 2+2s |
- 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. The practical design requirements, conditions and problems are emphasized. The first part deals with the optimum-design of passive-LC filters. A particular part is devoted to the piezoceramic, crystal and SAW filters and their optimum application. The second part is oriented to the optimum design of active filters - the second-order and higher-order. Design and technological constraints are discussed. An attention is devoted to the new ways of ARC filter design - current-mode filters, filters based on prospective active devices (CC, OTA, TIA), integrated filters and sampled-data filters (SC, SI). Practical design examples are solved.
- Requirements:
- Syllabus of lectures:
-
1. Electric filters - a survey, typical applications, requirements specification
2. System criteria, a general design algorithm, approximation problem
3. Passive LC-filters: non-standard design and optimization, losses influence
4. Filter structure optimization procedures, production and technological constraints
5. Filters containing piezoelectric elements, crystal and SAW filters, operation conditions
6. ARC filters - a survey, optimum design of ARC filters, prospective filter structures, sensitivity
7. Biquad optimum design, an influence of active devices non-idealities
8. Low-sensitivity higher-order filters
9. New ways of ARC filter design, current-mode filters
10. Filters based on current conveyors, OTA and current-feedback amplifiers
11. Design optimization, technological constraints, integrated filters
12. Sampled-data filters, SC integrated filters, tunable filters
13. Filter design for power- and pulse- applications
14. New trends and developments of analog filters
- Syllabus of tutorials:
-
1. Introduction, filter parameters specification, design constraints
2. Approximation problem - a solution, a comparison of approximation functions. CAD means
3. A practical example of non-standard LC filter design
4. Filter design optimization with respect to the losses influence
5. Band-pass filter optimized design
6. Measurement of crystal and piezoceramic filters, influence of correct filter termination
7. Design of 4th-order LP and BP filter using biquads
8. Design of 4th-order LP and BP filter using biquads - cont. Simulation of non-ideal behavior
9. Filter design using LC-prototype simulation
10. Current-mode filter design, current-conveyor-biquad design
11. OTA-C LP filter design, tunability solution
12. Integrated SC filter design, design software, practical design of 4th-order filter using LTC 1164
13. SC filter construction and measurement
14. Presentation of 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:
-
- Computer Science and Engineering (elective course)