FILCalc Support page

SUDOTECK released applicationFIL Calc for iOS.
This application has four calculation functions for RF Engeneer .
Version 1.00


1) LPF calculator .
2) HPF calculator .
3)Air Coilcalculator .

Picker Wheel Data setting interface is very simple for all functions .

DETAILS of functions
1) LPF

 

When you want to design LPF ,set the kind of filters using left wheel .

[C1.] ... chebychev filter of ripple 1dB MAX .
[C.5] ... chebychev filter of ripple 0.5dB MAX .
[C.2] ... chebychev filter of ripple 0.2dB MAX .
[But] ... Butterworth filter .
[Bes] ... Bessel filter .


And next whel select Number of components .
Cut-off frequency is set with numeric 4 wheels and "KHz" , " MHz" wheel .
An ideal characteristic is displayed on the screen.
And calculated value will displayed ata each components .


2) HPF

 

When you want to design HPF ,set the kind of filters using left wheel .

And next whel select Number of components .

Cut-off frequency is set with numeric 4 wheels and "KHz" , " MHz" wheel .

An ideal characteristic is displayed on the screen.
And calculated value will displayed ata each components .



3) Air Coil

 

To developing filter circuits , you will often need to make some coils .
The Air Coil is used for many filters .
You can calculate the value of coil using [D]iameter wheel and [L]ength and [N] turn of coil ..


4) Info

 

Info TAB will show you the responce of each kind of filters ,S11,S21 and groupe delay .
Tap [i] button , you can jump File calc support WEB .

 

 

 
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