microwave devices e511 lecture 12 amr al.awamry. agenda filter design filter prototype impedance and...
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![Page 1: Microwave Devices E511 Lecture 12 Amr Al.Awamry. Agenda Filter design Filter Prototype Impedance and Frequency Scaling LP,HP,BP,SP transformations](https://reader035.vdocuments.site/reader035/viewer/2022072111/56649ec65503460f94bd11b4/html5/thumbnails/1.jpg)
Microwave Devices E511Lecture 12
Amr Al.Awamry
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Agenda
Filter designFilter Prototype Impedance and Frequency ScalingLP,HP,BP,SP transformations
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MW Filter design
Insertion loss method
Power loss ration
Insertion loss
Reflection coefficient is even function so it can be represented in the form :
then
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Insertion loss ..cont.
Maximally flat
Equal ripple
Called Butterworth filter
Called Chebyshev Filter
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Filter design procedure
Complete system
requirements
HPFLPFBPFBRF
Passive or Active
Specify design metho
d
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Filter Prototype
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Filter Prototype …cont.
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Impedance and Frequency Scaling
Now we got Low Pass filter prototype at the required cut of frequency taken into consideration characteristic impedance denormalization
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Low-pass to high-pass transformation
Bass-pass transformation
Series L Shunt C
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Stop-band transformation
Series L Shunt C
Plz look at ex 8.3, ex
8.4
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Transformation Summary