Multiplexed Sample and Hold Resonator? (was New Filter Designs)

[jhaible]

> I recall cicrca 1980 there was a series of articles in
> a Polish bulletin about such filter structures which were
> reffered to as  "multibranch filters" (AFAIR).
> These consisted mostly of several identical paralel branches
> of passive LP networks which were cyclically multiplexed using
> CMOS switches, and indeed resulted in a very narrowband
> comb frequency response. These structures were theoretically
> analysed as a degenerate case of modulated filter banks
> found in multirate signal processing applications.
>
> If you are interested I may try to dig them out and
> to translate the essentials with my clumsy English.

I'm interested, too !

JH.