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Filter Prototype Denormalization

Visit the Anatech Microwave websiteClick to visit Guided Wave TechnologyPlease click here to visit KR Electronics.
Networks International CorporationOscilentClick to visit Reactel

The following table gives equation and schematic transforms necessary to convert normalized lowpass filter prototype values (1 rad/sec cutoff, 1 Ω source & load impedance).

RF Cafe - Filter prototype denormalization equation lowpass prototype
Lowpass Prototype - Capacitor Input
RF Cafe - Filter prototype denormalization equation lowpass prototype
Lowpass Prototype - Inductor Input

R = source/load resistance in Ω
CProto, LProto = prototype lowpass capacitor or
                         inductor value, respectively
C, L = denormalized capacitor or inductor value,
           respectively
FUpper & FLower = upper and lower cutoff frequencies,
                            respectively, in Hz
Final C and L values will be in farads (F) and henries
           (H), respectively


Type Transform Equation Transform Schematic
LowpassRF Cafe - Filter prototype denormalization equation lowpass prototype inductor 1RF Cafe - Filter prototype denormalization equation lowpass prototype inductor 2
RF Cafe - Filter prototype denormalization equation lowpass prototype inductor 4  RF Cafe - Filter prototype denormalization equation lowpass prototype inductor 3
RF Cafe - Filter prototype denormalization equation lowpass prototype capacitor 1RF Cafe - Filter prototype denormalization equation lowpass prototype capacitor 2    RF Cafe - Filter prototype denormalization equation lowpass prototype capacitor 3
 
Highpass RF Cafe - Filter prototype denormalization equation highpass prototype inductor 4RF Cafe - Filter prototype denormalization equation highpass prototype inductor 5  RF Cafe - Filter prototype denormalization equation highpass prototype inductor 7  RF Cafe - Filter prototype denormalization equation highpass prototype inductor 6
RF Cafe - Filter prototype denormalization equation highpass prototype capacitor 4RF Cafe - Filter prototype denormalization equation highpass prototype capacitor 5
RF Cafe - Filter prototype denormalization equation highpass prototype capacitor 7  RF Cafe - Filter prototype denormalization equation highpass prototype capacitor 6
Bandpass RF Cafe - Filter prototype denormalization equation bandpass prototype parallel capacitor inductor 1 RF Cafe - Filter prototype denormalization equation bandpass prototype parallel capacitor inductor 2 RF Cafe - Filter prototype denormalization equation bandpass prototype parallel capacitor inductor 3  RF Cafe - Filter prototype denormalization equation bandpass prototype parallel capacitor inductor 5  RF Cafe - Filter prototype denormalization equation bandpass prototype parallel capacitor inductor 4
RF Cafe - Filter prototype denormalization equation bandpass prototype series capacitor inductor 1 RF Cafe - Filter prototype denormalization equation bandpass prototype series capacitor inductor 2 RF Cafe - Filter prototype denormalization equation bandpass prototype series capacitor inductor 3
RF Cafe - Filter prototype denormalization equation bandpass prototype series capacitor inductor 5  RF Cafe - Filter prototype denormalization equation bandpass prototype series capacitor inductor 4
 
Bandstop RF Cafe - Filter prototype denormalization equation bandstop prototype series capacitor inductor 1 RF Cafe - Filter prototype denormalization equation bandstop prototype series capacitor inductor RF Cafe - Filter prototype denormalization equation bandstop prototype series capacitor inductor 2  RF Cafe - Filter prototype denormalization equation bandstop prototype parallel capacitor inductor 8  RF Cafe - Filter prototype denormalization equation bandstop prototype series capacitor inductor 3
RF Cafe - Filter prototype denormalization equation bandstop prototype parallel capacitor inductor 4 RF Cafe - Filter prototype denormalization equation bandstop prototype parallel capacitor inductor 5 RF Cafe - Filter prototype denormalization equation bandstop prototype parallel capacitor inductor 6
  RF Cafe - Filter prototype denormalization equation bandstop prototype parallel capacitor inductor 7


Related Pages on RF Cafe
- Filter Transfer Functions
- Filter Equivalent Noise Bandwidth
- Filter Prototype Denormalization
- Filter Design Resources
- Filter Design Books
- Bessel Filter Poles
- Bessel Filter Prototype Element Values
- Butterworth Lowpass Filter Poles
- Butterworth Filter Prototype Element Values
- Chebyshev Lowpass Filter Poles
- Chebyshev Filter Prototype Element Values
- Monolithic Ceramic Block Combline Bandpass
  Filters Design
- Coupled Microstrip Filters: Simple Methodologies for
  Improved Characteristics

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