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
Dear Jim and group, IMHO this is true for narrow bandpass filters only. If bandpass is not narrow in comparison with central frequency then one can do LPF to BPF transformation also. But it is more c
Dear Andy, LF Group, Well, this should put an end to anyone's insomnia For your particular circuit, the "missing" zero is at minus 40MHz. The poles and zeroes in a transfer function have to be symmet
hi Mike - No I don't want a zero there. For all practical purposes I'm more than happy with what the filter actually does at the moment. My puzzle is that there should be one and there isn't. An indu
Andy A correction: I should have said in series with and not across. So that my post should read: For a second zero on the HF side try an inductor in series with the zero capacitor. The trouble is th
Andy For a second zero on the HF side try an inductor across the zero capacitor. The trouble is that it will have to have the same reactance as this 1.5p capacitor and that may not be easily realisab
