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Double Tuned Filter Capacitor Loaded & Capacitor Coupled
(select tank inductor)
 
Given:    
fo center frequency
MHz
del f3db bandwidth at 3db points
MHz
Rs source impedance
Ohms
RL load impedance
Ohms
Lp tank inductance
H
 
q1 =
  
 
k12 =
  
 
Q Bandpass    
 
Qbp
 
Q Filter    
 
Q
 
Coupling Coefficient    
 
K
 
Dynamic Resistance    
 
Ro
Ohms
Node Capacitor    
 
Cnode
F
Coupling Capacitor    
 
Cc
F
Source side Load Capacitor  
 
Cs
F
Adjusted Source side Tank Capacitor  
CT
Cps
F
Load side Load Capacitor  
 
CL
F
Adjusted Load side Tank Capacitor    
 
CpL
F
Graph center frequency
MHz  
Bandwidth centered about fc
MHz
db scale from 0db to
db
 
 
 
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