Dear Researchers,
I have studied several papers on design of band pass filter (BPF) using fractal structures say Koch Fractal, Minkowski Fractal etc.
They all usually have good rolloff rate. What can be the physical mechanism behind it? Is it due to increase in value of inductance and capacitance or something else?? kindly guide on this issue.. If there is some ref. paper or mathematical relationship justifying same, please do share...
ALso one more thing- why selectivity is increased as we increase the iteration stage of fractal i.e., second stage has better ROR than first stage and so on...??what can be the reason for it..
kindly share your wisdom
ThanksRegard
Nitin
This is my understanding : Fractals adds total electrical length for current to transverse. So It reduces size and ROR imprves. It is adding equivalent L & C component So Order of the filter increases and ROR improves. If you go for more iterations , more equivalent L & C added So again Order improves and So on.
I have not come across Mathematical Modeling for fractals. If I come across it, I shall post here.(It's difficult model mathematically:))
Thank you Dear..The mechanism you gave is quite correct...but one more thing to ask...any ref. to state that by inc. the level of iteration, order will increase??
Thanks
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