Re: Asymmetrical Newton's Cradle

[Ludwik Kowalski <kowalskil@MAIL.MONTCLAIR.EDU>]

On Saturday, Nov 8, 2003, Brian Whatcott wrote:

> One next remembers that there is an alternative to a
> quarter wave length of transmission line. This is a
> device of specific length and impedance intermediate
> between two line sections to be joined  of greatly
> different characteristic impedances.
>
> One can instead,  intersperse a length of gradually
> changing impedance, which matches the preceding
> and succeeding sections exactly. This has the great
> advantage of being broad band, so that one is not
> limited to a frequency where a quarter wave has a
> fixed length.

Has this kind of approach been used to make a
"broad band" antireflection coating on a lens?