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Week 9 Ch 8,
1. Magnitude and phase response2. Properties3. Cascade and feedback composition
Week 9 Ch 8,
1. Magnitude and phase response2. Properties3. Cascade and feedback composition
1. Magnitude and phase response
Examples
Week 9 Ch 8,
1. Magnitude and phase response2. Properties3. Cascade and feedback composition
2 Properties
Corollary 1
So |H(ω)| is an evenfunction of ω
So H(ω)| is an oddfunction of ω
Corollary 2
Corollary 1
Corollary 2
Week 9 Ch 8,
1. Magnitude and phase response2. Properties3. Cascade and feedback composition
+
Increasing bandwidth by proportional negative feedback
Suppose open loop frequency response is
So 3 db bandwidthis given by
-
The closed loop frequency response is
whose 3 db bandwidth is