Course detail

Analog Filter Design

FEKT-CELFAcad. year: 2012/2013

Principal and characteristics of the frequency filters. First, second and high order filters of several types and approximations. Parameters of the EF resulting from the analysis and CAD. Sensitivity and tolerance analysis of the EF. Frequency and impedance transformations and normalization. Passive RC and high order RLC filters. Single, double and multiple amplifier biquads. Cauer filters with the zeros of the transfer function. Filters using functional blocks, inductance simulation and FDNR. All-pass filters, phase and delay equalizers. Filters in current mode. Switched capacitor, CCD, SAW, electro-mechanic and piezoelectric filters. Tuning and controlling of parameters of the EF. Optimization of filter design. CAD, software SNAP, PSpice, NAF and Filter design.

Language of instruction

English

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

doc. Ing. Jiří Petržela, Ph.D.

Department

Department of Radio Electronics (UREL)

Learning outcomes of the course unit

The students become familiar with the design methods of the analogue electrical filters, to improve the knowledge from the circuit theory and its suitable application, furthermore to improve the ability in computer aided design by PSpice and other software.

Prerequisites

The subject knowledge on the secondary school education level is requested.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

An emphasis is given on individual creative work of the students.

Course curriculum

1. Introduction, basic informations.
2. Fundamental notions from the field of electronic filters.
3. Passive RC filters, properties.
4. Passive RLC filters, properties.
5. Active devices and functional blocks used in filters.
6. Active RC filters with different orders.
7. Multifunctional filters.
8. Filters with synthetic elements.
9. All-pass phase-shift filters, frequency correctors.
10. Switched capacitors based filters.
11. Filters working on distinct physical principles.
12. Available software for analog filter design.

Work placements

Not applicable.

Aims

The aim of the course is to make students familiar with several types of the modern analogue filters, to teach them how to design passive and active filters of the high order, to make them familiar with computer aided optimal design, adequate simulation and verifying analysis, putting an emphasis on individual projects.

Specification of controlled education, way of implementation and compensation for absences

The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Not applicable.

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EEKR-BC Bachelor's

    branch BC-EST , 2. year of study, summer semester, optional specialized
    branch BC-MET , 2. year of study, summer semester, optional specialized

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

doc. Ing. Jiří Petržela, Ph.D.

Syllabus

Principal, object, types, characteristics and parameters of the EF.
Biquadratic RLC filters. Passive filters RC.
High-order RLC filters and design tools of them.
Active elements and functional blocks in filters, modeling of them.
Single-amplifier biquads (LP, BP, HP).
Multiple-amplifier biquads.
Elliptic ARC biquads and band-reject ARC filters.
Design of the high-order ARC filters, cascade synthesis.
ARC filters with functional blocks and synthetic elements.
All-pass filters and correctors.
Switched-capacitor and CCD filters. Current-mode filters.
Electro-mechanic, piezoelectric and PAW filters.
Optimization of designed filters. Tuning and controlling of parameters.

Exercise in computer lab

26 hours, compulsory

Teacher / Lecturer

doc. Ing. Jiří Petržela, Ph.D.

Syllabus

Simple passive filters RC and RLC.
Design of the high-order passive filters. Software NAF.
Optimization of the designed filters.
Comparing of sensitivity of active and passive filters.
Hierarchical modeling of active elements and functional blocks.
Single-amplifier and multiple-amplifier biquads, studying parasitic influences at HF.
Tuning and controlling of filter parameters, improving the value of Q.