[time-nuts] Sub-ps delay line

[Mattia Rizzi]

Hello,

>Put a length of coax in an adjustable oven ?

Using the numbers provided by [1], RG58 has about  -0.152 ps/m/deg. I need
1 ns range, cable length is prohibitive.

cheers,
Mattia

[1] http://www.hepl.hiroshima-u.ac.jp/phx/notes/cable/cable.html

2017-02-07 18:04 GMT+01:00 Poul-Henning Kamp <phk at phk.freebsd.dk>:

> --------
> In message <CADv+7GhU-TKUN0OwXF99THpoHnQVp_mgFyG5cZZA0FXbOuQWCg at mail.
> gmail.com>
> , Mattia Rizzi writes:
>
> >I'm looking/designing a sub-ps delay line with very high stability.
> >Basically it has microwave requirements on phase matching.
> >The main features that such delay line should have are:
> >- sub-ps resolution and about 1 ns range
>
> Put a length of coax in an adjustable oven ?
>
> --
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe
> Never attribute to malice what can adequately be explained by incompetence.
>