> ----------
> From: Tom Rauch
>
>
> So a 1" wide strip has about the same inductance as a 1" wide round
> tube, but with the same amount of material a flat strip has
> less inductance because it can be made wider......
> By the way Tom, if you play with these formulas, the units are MKS,
> the inductance is in nH, I left a paranthesis out of the ribbon
> equation (tough to write equations here), and the wire equation is for
> solid wire, not tubing. The main point is that copper strip like the
> stuff you can get from Polyphaser (1.5"wide by 0.015" thick) is a lot
> lower inductance than the standard "wimpy" AWG#2 wire used for
> grounding, and a heck of a lot more flexible than copper pipe (and
> more expensive than either!).
>
> -- Dave
>
>
> The reference can be derived from data in Magraw Hill
> > Electronics Engineers' Handbook.
>
> Is that the one by Fink?
yep
> 73, Tom W8JI
> w8ji.tom@MCIONE.com
>
>
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|