Filter Design
0%
Course Title: Filter Design
Course No: ENEX 301
Nature of the Course: Theory + Lab
Semester: 5
Full Marks: 40 + 60 + 25 + 0
Pass Marks: 16 + 24 + 0 + 0
Credit Hours: 3
Course Description
Course Objectives
Course Contents
1. Introduction
6 hrs
4.1. One-port passive circuits
- Properties of passive circuits, positive real functions
- Properties of lossless function
- Synthesis of LC one-port circuits, Foster and Cauer realization
- Properties and synthesis of RC one-port circuits
4.2. Two-port passive circuits
- Properties of passive two-port circuits, residue condition, transmission zeros
- Synthesis of two port LC and RC ladder circuits based on zero shifting by partial removal of a pole
6.1. First order active filters (Bilinear)
- Review of op-amp characteristics
- First order active filters using inverting and non-inverting op-amp configurations
6.2. Second order active filters (Biquads)
- Tow-Thomas biquad circuit, design of lowpass active filter using Tow-Thomas biquad circuit
- Highpass, bandpass, bandstop and allpass filter using Tow-Thomas biquad circuit
- Sallen-key biquad circuit
- Gain reduction and gain enhancement
- RC-CR transformation
6.3. Higher order active filters
- Cascade of biquads
- Active simulation of passive filters: Using simulated inductor and FDNR; Using Leapfrog simulation of LC ladders
7. Sensitivity
2 hrs
Laboratory Works
- 1.Analysis of passive and active filter circuits
- 2.Design of passive filters from normalized filter circuit
- 3.Design of active filters using Tow-Thomas biquad circuit
- 4.Design of active filters using Sallen-Key biquad circuit
- 5.Design of higher order active filters using simulated inductors and FDNR
- 6.Design of higher order active filters using Leapfrog simulation
Reference Books
- 1.Raut, R., Swamy, M. N. S. (2010). Modern analog filter analysis and design. Wiley-VCH.
- 2.Schaumann, R., Van Valkenburg, M. E. (2001). Design of analog filters. Oxford University Press.
- 3.Su, K. L. (2002). Analog filters. Springer.
- 4.Chen, W.-K. (2009). Passive, active and digital filters. CRC Press.
- 5.Thede, L. D. (2004). Practical analog and digital filter design. Artech House.