The document discusses frequency response and Bode plots. It explains that Bode plots use a decibel scale to show gain and are based on logarithms. There are seven factors that can appear in transfer functions including gain, poles, zeros, and their relationships to angular frequency. It also describes different types of passive and active filters including lowpass, highpass, bandpass, and bandstop filters. Finally, it mentions using MATLAB to compute frequency response problems.

1. FREQUENCY
RESPONSE
Dr. Ir. Bambang Sujanarko, M.M.
Teknik Elektro Universitas Jember

2. Gain and phase
changed, etc
V
or
i
Circuit
Frequency
variation

3. Transfer Function
numerator
denominator

5. The Decibel Scale
Frequency Response drawn using Bode plots. The Bode plots are based on
logarithms, so it is important to keep the following properties of logarithms :
Gain in the Bode Plots, use Decibel scale and usually remark as GdB

6. Bode Plots
Seven types of different factors that can appear in various combinations
in a transfer function.

7. 1. Gain K

8. 2.

9. 3.
w << 1/T w >> 1/T

10. 3.
w << wo w >> wo
w high

14. Series Resonance

17. Parallel Resonance

18. Passive Filters
Lowpass Filter

19. Highpass Filter
Bandpass Filter

20. Bandstop /Bandreject/ Notch Filter
Active Filters
Active filters consist of combinations of resistors, capacitors, and
op amps.

21. Computation Using MATLAB

22. Problem :
14.16
14.18
14.29
14.39
14.50
14.53