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Description: Credit 4. The active biquad; sensitivity analysis; realization of active
two-port networks; design of broadband matching networks; and the theory of
passive cascade synthesis.
Prerequisite: ECE 412
Recent Textbooks:
W.-K. Chen, Passive and Active
Filters: Theory and Implementation, New York: John Wiley and Sons Publishing Company, 1986.
Passive and Active Network
Analysis, by A. Budak, Waveland Press, 1991.
Deliyannis T., Yichuang
Sun, and J. K. Fidler, Continuous-time Active
Filter Design, CRC Press, New York, 1999.
Topics:
1. Review
of topics from ECE 412
a.
Filter classifications (LP, HP, BP, AP, etc.)
b. Classical analog filter types (Butterworth, Chebyshev,
Inverse
c. Chebyshev, Cauer,
Bessel)
d. Cascade synthesis using active biquadratic
filter stages
e. Frequency and impedance scaling
f. Gain reduction and enhancement
g. Transfomation of LP prototype to other
filter types
h. RC-CR transformation
2.
Sensitivity Analysis
a.
Sensitivity functions
b. The multiparameter sensitivity
c. Gain and root sensitivities
d. General relations of network function sensitivities
e. Sensitivity of active filter stages to component
variations
3.
Passive Ladder Synthesis
a. Review of two-port network analysis
b. Simple passive ladder filters
c. Sensitivity of simple passive ladder filter stages to
component
variations
d. Cauer I,II and Foster I,II
ladder synthesis having purely resistive
loads
4.
Realization of active two-port networks
a. Inductance simulation
b. Frequency-dependent negative resistors
c. Leapfrog simulation of ladders
d. Generalization of leapfrog simulation to Foster I,II and mixed
passive ladders
e. Wave filter formulation for passive ladder simulation
f. Sensitivity analysis
of simulated ladders
5.
Computer methods for analog filter design (product survey)
6. Latest advances in analog
filter design (literature survey)
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