republican-creole
site Search:


 
   
story category
The Spray On Antenna?
Lower Energy Consumption, Better Range
by Karl Bode Tuesday 14-Feb-2012 tags: business · wireless · hardware · alternatives · bandwidth · networking · wireless
Chamtech Enterprises is hoping to make signal issues a thing of the past with a new form of spray on antenna the company demonstrated this week at Google's Solve for X conference. Chamtech's co-founder Anthony Sutera explains the idea in a video, claiming that the technology -- discovered by accident -- will allow wireless signal transmission at greater distances with a fraction of the energy consumption. It also could eliminate the need for massive and ugly cell towers, given it can be applied to everyday objects like buildings, rocks, and trees (they claim to have sent a VHF signal up to 14 miles via a tree). At the very least, it could be a mean way to pick on any locals claiming to have wireless electrosensitivity.

view: topics flat text 
Post a:

Transmaster
Don't Blame Me I Voted For Bill and Opus

join:2001-06-20
Cheyenne, WY

this is new technology ya right

New technology indeed a conductive spray metalic coating has been around for 30 or 40 years.

Corehhi

join:2002-01-28
Bluffton, SC
Reviews:
·Hargray Cable

Re: this is new technology ya right

said by Transmaster:

New technology indeed a conductive spray metalic coating has been around for 30 or 40 years.

Yes but what they're saying isn't so simple. Who knows they may be full of crap, maybe not we will see.
sonicmerlin

join:2009-05-24
Cleveland, OH
kudos:1
said by Transmaster:

New technology indeed a conductive spray metalic coating has been around for 30 or 40 years.

Dude, really? Did you even watch the video? The liquid contains millions of microscopic ultracapacitors that allow energy to be radiated with nearly perfect efficiency, resulting in minimal heat generation or wasted energy.

This is far more advanced than some stupid metallic coating.

knightmb
Everybody Lies

join:2003-12-01
Franklin, TN

Re: this is new technology ya right

said by sonicmerlin:

said by Transmaster:

New technology indeed a conductive spray metalic coating has been around for 30 or 40 years.

Dude, really? Did you even watch the video? The liquid contains millions of microscopic ultracapacitors that allow energy to be radiated with nearly perfect efficiency, resulting in minimal heat generation or wasted energy.

This is far more advanced than some stupid metallic coating.

Yes, tortured myself through that whole video. Everything about what he presented was just wrong, from accidental discover of advanced micro-technology to using the wrong terms for signal and output measurement. Microscopic ultra-capacitors would hinder a signal because they absorb energy. The substance is not going to create more energy than it receives, so it falls flat for being +200% energy efficient.

It's been well known since last century about how one can create more effective antenna for certain applications be it phased array or yagi or just a straight pole. A more flexible antenna (which is really all they are claiming) has been around for a long time. Their substance won't defeat the laws of physics, even if they have discovered a room temperature super-conductor for the simple fact that power out can never be greater than power in the absence of some outside amplifying source. Google should really filter these solve for x entries a bit better.

Corehhi

join:2002-01-28
Bluffton, SC
Reviews:
·Hargray Cable

Re: this is new technology ya right

said by knightmb:

said by sonicmerlin:

said by Transmaster:

The substance is not going to create more energy than it receives, so it falls flat for being +200% energy efficient.

He didn't say anything like it was +200% energy efficient where did you get that?? He said the spray on just increased the efficiency and in some cases by a large amount.

knightmb
Everybody Lies

join:2003-12-01
Franklin, TN

Re: this is new technology ya right

I don't remember the super-capacitor part either being mentioned, but it made it sound like the paint is somehow powering up the signal. That's why I brought it up.

While I'm hopeful for new technology, the claims made don't take into account that no matter how good your antenna is, the air/water that the signal travels through is where you experience the most signal loss.

The claims they make can easily be duplicated with any standard antenna. Kind of like trying to re-invent old things in software and wanting a patent for it. Heck, I could easily duplicate their findings with metallic tape in a proper phased array. I saw all the antenna slides setup, but we never saw what they were comparing it to.

It's like saying that this sector antenna that you built with a 20 degree beam works better than the 360 degree omni-antenna next to it, but only when aimed directly at the object. The presentation makes it sound like they have 1-up the omni-antenna design to the same gain as a directional antenna, but the laws of physics would say otherwise due to power dissipation dropping so rapidly over an ever expanding 3D sphere of direction.

Easily paint-able directional antenna I can see, but not an amazing technology increase for omni-antenna technology which is where you would see the most benefit that they claim. Basically, your iPhone will only get a better signal when it is aimed in the direction of the new antenna, not from everyday use where the phone can be in any position while you are talking.

r81984
Fair and Balanced
Premium
join:2001-11-14
Katy, TX
Reviews:
·AT&T U-Verse
·AT&T DSL Service
·row44

Re: this is new technology ya right

You are right.

All they said is their material is more efficient than regular antenna material.
They said in some cases they got 300% more range.
They claim their material took a rfid range from 5' to 700', but that could mean the original rfid material was a very poor choice.
Underwater they went from 100' to 1 mile using their antenna over standard antenna.
They claim they can get 10% more efficiency for cell phone antennas. Which could mean they sprayed inside the entire casing so they compared their large antenna to a small copper run on a circuit board.

What people call nano-technology is usually something stupid. So it is probably just a conductive paint with nano hairs of metal in it.
It sounds like in their experiments they compared their product to very, very poor antennas so of course it improves range.

I dont see this really going anywhere.
--
...brought to you by Carl's Jr.

tshirt
Premium,MVM
join:2004-07-11
Snohomish, WA
kudos:3

magic beans?

as seen on TV.

Screavics
Premium
join:2011-06-23
Pearcy, AR

Next story

Next story will be a class action against these guys or telcos for "stealing power"...

jmn1207
Premium
join:2000-07-19
Ashburn, VA

Graffiti

Now a city can be completely connected through graffiti.
bcltoys

join:2008-07-21
Lost today

On order.

I have a 55 gallon drum on order going to paint two acres of tree's.

vpoko
Premium
join:2003-07-03
Boston, MA

Tuning

Don't antennas need to be a precise length (either the wavelength or an integer harmonic) for maximum efficiency?

fifty nine

join:2002-09-25
Sussex, NJ
kudos:1

Re: Tuning

said by vpoko:

Don't antennas need to be a precise length (either the wavelength or an integer harmonic) for maximum efficiency?

That's why you'd spray a certain length of antenna spray.

vpoko
Premium
join:2003-07-03
Boston, MA

Re: Tuning

I would and you would, not so sure that most people suddenly spray-painting their trees would, though.
sonicmerlin

join:2009-05-24
Cleveland, OH
kudos:1
said by vpoko:

Don't antennas need to be a precise length (either the wavelength or an integer harmonic) for maximum efficiency?

That's why there are millions of microscopic ultracapacitors in the liquid, each with slightly different properties.

vpoko
Premium
join:2003-07-03
Boston, MA

Re: Tuning

Where did you find that info? It wasn't in the article.
dead_screem

join:2004-09-10
Carol Stream, IL

hmmmm...

Wouldn't painting this crap on a tree, ya know, kill the tree?

fifty nine

join:2002-09-25
Sussex, NJ
kudos:1

Re: hmmmm...

said by dead_screem:

Wouldn't painting this crap on a tree, ya know, kill the tree?

Nope.
sonicmerlin

join:2009-05-24
Cleveland, OH
kudos:1
said by dead_screem:

Wouldn't painting this crap on a tree, ya know, kill the tree?

You could just paint a house.

Jason Levine
Premium
join:2001-07-13
USA

Pick on electrosensitive locals

Step 1: Announce to all of your neighbors that you are painting your house with this new spray on antenna paint.
Step 2: Wait until they begin complaining that your house is causing them to have headaches, nausea, arthritis, hairy knuckles, etc.
Step 3: Reveal that your paint is actually plain old paint and not spray on antenna paint.

(Step 4: Get sued by them anyway when they "know" you're lying because their symptoms couldn't just be in their head.)
--
-Jason Levine

MovieLover76

join:2009-09-11
kudos:1

Re: Pick on electrosensitive locals

Sad, but true.
WHT

join:2010-03-26
kudos:3
said by Jason Levine:

Step 1: Announce to all of your neighbors that you are painting your house with this new spray on antenna paint.

Paint your house first, then announce what you did and ask if anyone has started experience unusual health problems, such as nocturnal flatulence.

Miataman

join:2010-10-27
M.I.T.
Reviews:
·Verizon FiOS

Re: Pick on electrosensitive locals

said by WHT:

such as nocturnal flatulence.

.. Ahem, That horse has already left the barn.
--
"My hat, my cane, Jeeves".

jap
Premium
join:2003-08-10
038xx
said by WHT:

Paint your house first, then announce what you did and ask if anyone has started experience unusual health problems, such as nocturnal flatulence.

Mine went the other way. Had nocturnal flatulence, installed wireless, got cathemeral flatulence. We went back to cables.

I'd really like to know how you became aware of the phenomenon.

DrStrange
Technically feasible
Premium
join:2001-07-23
West Hartford, CT
kudos:1

Does this stuff work for HF?

If so, it'll make a real hit for Field Day.

What's the velocity factor? I'll have to measure my trees. I don't think my Douglas firs are anywhere near 40m tall, but they're at least 20m. Maybe if I coupled them at the top, I could make a vertical folded dipole for 160m.

Has anybody called them for pricing?

Transmaster
Don't Blame Me I Voted For Bill and Opus

join:2001-06-20
Cheyenne, WY

1 edit

Re: Does this stuff work for HF?


3m Coductive Tape
said by DrStrange:

If so, it'll make a real hit for Field Day.

What's the velocity factor? I'll have to measure my trees. I don't think my Douglas firs are anywhere near 40m tall, but they're at least 20m. Maybe if I coupled them at the top, I could make a vertical folded dipole for 160m.

Has anybody called them for pricing?

It would work for HF expect for one thing this stuff is really expensive.
»www.mgchemicals.com/products/843···ing.html

Better yet and what I have used for both HF, VHF, and UHF antennas, and would make great WiFi antennas is 3M copper adhesive tape.

»solutions.3m.com/wps/portal/3M/e···ilTapes/
--
I am quite sure now that often, very often, in matters concerning religion and politics a man's reasoning powers are not above the monkey's.
- Mark Twain in Eruption

Sr Tech
Premium
join:2003-01-19
New Fairfield, CT

Re: Does this stuff work for HF?

Conductive tape would work as well, one better just use a plotter to cut out a antenna design from a sheet.

DrStrange
Technically feasible
Premium
join:2001-07-23
West Hartford, CT
kudos:1
Thanks for the info on what the stuff is made of. I suppose I should have expected it. Now that I know what it's made of, I also know it's probably prohibitively expensive.
chuckkk

join:2001-11-10
Warner Robins, GA
Reviews:
·Cox HSI
Years ago, we used the same copper tape that was popular in the slot racing hobby. Made a Yagi antenna on a large Plexiglas disk, put it in an attic, and away we went.

The comments about the capacitors "pumping" energy sound like the basic description of how a TWT (traveling wave tube) works. Energy bounces back and forth inside a linear cavity, and energy is added with each bounce, until it is coupled to the outside world. Wait a minute! That also sounds sorta like how a Laser works! Not to mention something else that might upset the government!

tmh

@verizon.net

I'll just spray it on the cat

That way, when he climbs up my neighbor's tree, I'll have free OTA TV.

SysOp

join:2001-04-18
Douglasville, GA
Reviews:
·voip.ms
·T-Mobile US
·Clear Wireless
·Comcast

Sea Water Antenna

»www.youtube.com/watch?v=9tIZUhu21sQ
SlashG42

join:2002-02-13
Metairie, LA

Sheilding

I've seen products like this used as shielding on plastic housings.

DThinking

@rr.com

ignorance & stupidity

"Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity." Martin Luther King

Rhett forgot to mention the antenna stencil and matching circuit without which there will be no conversion from electromagnetic waves to electric current, i.e. Maxwells Equations. There is no such a thing as "antenna in a can" unless Rhett et al. proved that Maxwell is wrong!

GOOGLE has to recognize that there is a difference between "Solving for X" and hyping a technology that just doesn't work as stated.

Monday, 04-Jun 06:35:20 Terms of Use & Privacy | feedback | contact | Hosting by nac.net - DSL,Hosting & Co-lo
over 12.5 years online © 1999-2012 dslreports.com.