Re: Terry's New Plane Wave Antenna

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>

Hi Terry,

Query:

I built your planewave (current and voltage hookup) many moons ago. 
It's been fantastic and has served many purposes. The new planewave 
looks interesting and I note only one feed to the scope. But my query 
is regarding your planewave antenna itself.

It seems the planewave antenna could be a very simple 2 layer pcb 
with the groundplane on layer 2 and the antenna on layer 1. Is this 
something that can be easily thrown onto a pcb design and maybe 
offered as a bulk buy?

This crossed my mind mainly because today I received the 3 pcb's I 
just finished up for work. The company I work for was use to paying 
super high prices on their proto type boards. I used CircuitMaker 
2000 to do the boards (not the best of programs for various trace 
widths), but it did have it's good points. I ended up finding that 
www.4pcb.com had proto's at 1/2 the price the other board houses were 
quoting (guess who got my work?). Well, they did a great job! Seems 
like we could throw your antenna into a simple pcb design unless 
there is a reason for the groundplane distance below the antenna.

Just a thought.

Take care,
Bart

Tesla list wrote:

> Original poster: Terry Fritz <vardin@xxxxxxxxxxxxxxxxxxxxxxx>
>
> Hi,
>
> The files you mention are up to date.  The antenna will work with 
> any scope.  The antenna's ground plane is grounded through the cable 
> to the scope chassis.
>
> Cheers,
>
>         Terry
>
>
> At 06:31 AM 12/20/2005, you wrote:
>
> > Hello Terry,
> >
> > I got interested in your "Large Wide-Bandwidth Plane-Wave Antenna", 
> > described here:
> >
> > http://hot-streamer.com/temp/PlaneWave.pdf
> >
> > and here:
> >
> > http://hot-streamer.com/TeslaCoils/MyPapers/planant/waveant3.html
> >
> > I`m going to take some measurements of my VTTC with this unit (I 
> > haven`t build it yet).
> > Everything seems to be in order, but - you use Tektronix TDS210, as 
> > i see from the photos
> > this o-scope is very small (battery-powered perhaps?) Mine o-scope 
> > was made in USSR, it
> > has a massive _metall_ chassis (signal ground - one signal wire is 
> > tied to the chassis),
> > and it`s energised by the mains.
> >
> > So, does all your system has the "floating" potential, or it`s 
> > connected to the ground
> > anywhere? See - the whole capacitance of my scope chassis is not 
> > very small - can it
> > influence the measurements anyway? And, maybe there`re some new 
> > revisions of this
> > antenna after this one:
> >
> > "The new one is larger, quieter, better bandwidth, tougher, easier 
> > to make..."
> >
> > http://hot-streamer.com/temp/PlaneWave.pdf
> >
> > ?
> >
> >
> >
> > --
> > Best regards,
> >  Grishka                          mailto:ghome@xxxxxxxxx