Reflector for whip

ohford <(E-Mail Removed)> wrote:
> I made a reflector for a little 2dBi whip which increased signal
> strength by 5-10%. Made it from half cut tin can and experimenting with
> distance and angle. I did this simply on the assumption that the wave
> pattern for the whip would be doughnut shaped and that the semicircle of
> metal would reflect back lost signal and make the antenna more
> directional.

> Question, am I theorizing correctly on this and is there any way to make
> an even better reflector than the one I made?

http://www.freeantennas.com
The "Original" is the soup can idea.
The EZ-12 looks nicer to me.

--
Clarence A Dold - Hidden Valley Lake, CA, USA GPS: 38.8,-122.5

ohford <(E-Mail Removed)> wrote:
> (E-Mail Removed) wrote in news:f6ec5m$s2u$(E-Mail Removed):

> > (E-Mail Removed)

> Thanks, but I'm no electronics engineer. Would be nice if they gave some
> picture examples.

I'm not too excited about the NEC models (the wireframe drawings), but
there are loads of pictures, including my warped soup can
http://www.freeantennas.com/projects...ry/OneSoup.JPG

There are several pictures on the "original" opening page, below the text.
http://www.freeantennas.com/projects/template/
and a "lots more pictures" link at the bottom of the page.

--
Clarence A Dold - Hidden Valley Lake, CA, USA GPS: 38.8,-122.5

I made a reflector for a little 2dBi whip which increased signal
strength by 5-10%. Made it from half cut tin can and experimenting with
distance and angle. I did this simply on the assumption that the wave
pattern for the whip would be doughnut shaped and that the semicircle of
metal would reflect back lost signal and make the antenna more
directional.

Question, am I theorizing correctly on this and is there any way to make
an even better reflector than the one I made?

(E-Mail Removed) wrote in news:f6ec5m$s2u$(E-Mail Removed):

> (E-Mail Removed)

Thanks, but I'm no electronics engineer. Would be nice if they gave some
picture examples.

I'm guessing that:
http://www.freeantennas.com/2400/Can...pole/notes.txt might be
a match?

(E-Mail Removed) wrote in news:f6ec5m$s2u$(E-Mail Removed):

> (E-Mail Removed)

ok, I found the one ur talking about ezreflector.

On Jul 4, 4:13 am, ohford <ohf...@braveneworld.org> wrote:
> I made a reflector for a little 2dBi whip which increased signal
> strength by 5-10%. Made it from half cut tin can and experimenting with
> distance and angle. I did this simply on the assumption that the wave
> pattern for the whip would be doughnut shaped and that the semicircle of
> metal would reflect back lost signal and make the antenna more
> directional.
>
> Question, am I theorizing correctly on this and is there any way to make
> an even better reflector than the one I made?

You should watch out for multipath reflections though. For an
optimized shape, check out:

http://www.confero24.com/product_inf...oor-reflectors

c24