[Noisebridge-discuss] Interesting antenna problem
orenbeck at gmail.com
Sat Aug 24 00:02:35 UTC 2013
RE: Antenna directionality.
It's not "just" the antenna itself. It's also the interactions between what
an antenna or array is externally influenced by. Decades ago there was a
rooftop point-to-point system that had a GHZ range transceiver's antenna
dish literally deep draw stamped into a metal panel of it's enclosure.
Slot loaded designs in metallic boxes may be a worthy method to explore as
well. The box can be partitioned internally for isolation of logic and RF
areas. One example might be lost PLA casting of Fractal Array and the
housing with PLA bits for mounting standoffs.
Edgy on the allowable dimensions but? Last Resort First:
On Sat, Aug 24, 2013 at 6:17 AM, Brink Of Complexity
<brink.0x3f at gmail.com>wrote:
> Fractal antennas are made by combining many segments representing harmonic
> integer divisions of the desired resonant wavelength(s) onto the same
> antenna, thereby helping to optimize for orientation or spectral spread,
> over noise and attenuation.
> Directionality can be achieved a number of ways, but harnessing
> polarization and increasing directional resonance are the most popular
> ways. (Pringles cans do the latter, for example).
> On Aug 22, 2013 9:44 PM, "Norman Bradley" <pryankster at gmail.com> wrote:
> > Mitch sorry for the delay. I suggest that they look up "Fractal
> Antennas". I don't know how they are made, but, I know that they are in
> production for some applications.
> > You are entitled to your own opinion.
> > You are NOT entitled to your own facts.
> > Norman
> > On 8/12/2013 6:16 AM, Mitch Altman wrote:
> >> Someone I know is making a game accessory for phones, and needs to
> make a directional antenna for 2.4GHz that fits into a space this big:
> >> 0.9cm x 2cm x
> >> Can anyone help them?
> >> Thanks,
> >> Mitch.
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