[RVRC] Cross-Post: Spray-on Antennas

[N2GJ_AMSAT]

I thought my friends who are not on the NJQRP reflector might find this
information of interest.

 Spray-On Antennas
<http://groups.yahoo.com/group/njqrp/message/2841;_ylc=X3oDMTJyNWQ2Z2d1BF9TAzk3MzU5NzE1BGdycElkAzIxMzM5MjIxBGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAMyODQxBHNlYwNkbXNnBHNsawN2bXNnBHN0aW1lAzEzMzA2OTgxMzU->
Posted
by: "Joe Jesson" jjesson at voyager.net
<jjesson at voyager.net?Subject=+Re%3A%20Spray-On%20Antennas>   jejesson
<http://profiles.yahoo.com/jejesson>  Thu Mar 1, 2012 9:49 pm (PST)

As usual, Teamspeak meeting tonight was well done... this old dog learned
some new stuff.

Now I have successfully prototyped atennas with copper tape, but this
technique below looks like it would REALLY be tough to get a decent SWR...
growlers howling out of control :-)
Must be some accurate sprayer to spray microwave elements!

Joe Jesson, KC2VGL

http://www.techthefuture.com/technology/spray-on-antennas-establish-radio-communications-anywhere/

"A tree-antenna, a duct tape-antenna or an entire wall turned into a
transmitting device. The nano spray-on antenna technology of Chamtech
Enterprises can turn any surface into a wireless connectivity device.
Transmitting a signal twice as far as a standard antenna or at half the
power.
Anthony Sutera, CEO of Chamtech, presented his invention at Solve For X, a
forum recently launched by Google encouraging people to come up with
radical solutions backed by breakthrough technology to solve problems that
affect the world [video below]. The challenge Sutera is tackling is to get
a wireless signal anywhere.

Sutera explains that antenna technology hasn't changed that much since
Tesla and Marconi used a copper wire to transmit radio signals. But this
technology isn't very efficient because not all electricity is converted
into radio waves, some of it is lost as heat. To boost the signal you need
to apply more power.

Chamtech is leaving all this behind and gearing up for a paradigm shift in
antenna technology.

The company developed a material consisting of thousands and thousands of
nanocapacitors. When it is sprayed on a surface the capacitors form a
pattern which allows the signal to flow. The capacitors charge and
discharge extremely quickly without any heat loss. The signal hops from
capacitor to capacitor until it reaches the surface and is launched into
space.

As an experiment the material was sprayed onto a tree and used to transmit
a signal. Not only did they create the first tree-antenna it also worked an
order of a magnitude better than a standard antenna.

Then they stuck an antenna-sprayed piece of duct tape to an airplane and
established a microwave data link with the vehicle 14 miles overhead.

The low power spray-on antenna can aid in getting wireless access anywhere.
By boosting signals in cities where buildings block reception and by
playing a part in mesh networks to connect remote areas."

GJ

Gerry Jurrens N2GJ
mailto:n2gj at amsat.org