On Sun, 29 Apr 2007, Alexander S. Yurkov wrote:
> I can not easy remember general (without narrow band approximation) form
> of LPF to BPF transformation but shure it is posible and yelds
> some asymmetry in BPF response.

Though somone similar to \omega'=a*\omega + b/\omega with constant a and
b. This is NONLINEAR transformation which yelds some distortion of
response.
 
 73 de RA9MB/Alex
 http://www.qsl.net/ra9mb