Here is a link to a prior art antenna device comprised of carbon nanotubes.


I am surprised so many hams do not distinguish between antennas and devices
like photodiodes.

A nano-antenna can be used without a lens. Groups of nano-antennas can be used
to make gain antennas, directional antennas, and steerable antennas, but you
knew that from the ARRL Antenna Book. Antennas can be connected to junctions
that can then detect, mix, modulate, upconvert, downconvert, and the antenna
elements can be tuned to length so they favor certain wavelengths. Lots of
information can be sent.

Lightwave-scaled antennas can be biased to switch light. They are quite fast!

There is also a shortening effect that hams already know about at radio
wavelengths that is more pronounced at light wavelengths, essentially due to
the inertia of the electron. Even so, practical antennas can be made by
growing them to length on a substrate, such as silicon. I have been working on
this since the mid-90's.

Oh, the links

www.ambitcorp.com

has a list of some prior art patents in that area.

You can also look up W1XYZ in

www.qrz.com and see some more stuff that is related.

IBM's Phil Hobbs may be putting this to work to try to eliminate board to board
or chip to chip interconnects which is a worthy goal. Phil is right as we did
our first demo about a decade ago. How time flies.

Robert J Crowley

w1xyz

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Ref:
http://edition.cnn.com/2004/TECH/sci...eut/index.html

"W1XYZ"
I am surprised so many hams do not distinguish between
antennas and devices like photodiodes. snip

Me too. I'm not sure if they've 'lost it', or if they're just playing
troll.

Here is a link to a prior art antenna device...
www.ambitcorp.com
has a list of some prior art patents in that area.
You can also look up W1XYZ in
www.qrz.com and see some more stuff that is related.

(It would be slightly more fair if you had included an advance disclaimer
that the link was to YOUR company. Not a serious issue, but it took me a
minute to realize that you're referencing your own work (or that of your
company). Interesting links just the same...)

By their very nature (especially American) patents are intentionally not
forthcoming about what has actually been accomplished and what might be
claim-stretching brochure-ware. Can you please confirm exactly when (year)
you achived an actual physical embodiment of a functioning carbon nanotube
antenna with dimensions corresponding to visible light? I'm sorry if I seen
to be poo-poo'ing, but I didn't see that precise question answered on the
provided links. I did see mention of larger structures. A more-precise
link would be helpful in this regard.

If you can do that, then I'll award you the 'mythical $50k' and admit
defeat.

Also, the group that was mentioned on the CNN news was from Boston, MA and
you appear to be from that same area. Any relationship between these two
(?) groups. Have you ever had contact with them on this topic?

Phil is right as we did our first demo about a
decade ago. How time flies.

I'm just trying to establish if your links to 'prior art' are strictly valid
(in the 'been there, done that, got the T-shirt' sense) or if they are the
sort of thing (in the sense of 'close, but no cigar' sense) that happens
with ANY new development. There's always a dozen or more groups working on
the same thing at any one time, but usually only one crosses a significant
boundary first and issues press releases to CNN.

I appreciate your posting and I look forward to seeing your next.




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"Dogs - nothing but dogs !!" wrote in message

I claim utter victory.

Thanks for playing.

"Winning an argument on the internet is like winning at the special olympics,
you're still a retard." ~ Anonymous...

On 26 Sep 2004 12:35:27 GMT, (W1xyz) wrote:

Even so, practical antennas can be made by
growing them to length on a substrate, such as silicon. I have been working on
this since the mid-90's.

Hi Robert,

What is the yield rate?

73's
Richard Clark, KB7QHC

Here is a link to a prior art antenna device comprised of carbon nanotubes.


I am surprised so many hams do not distinguish between antennas and devices
like photodiodes.

A nano-antenna can be used without a lens. Groups of nano-antennas can be
used
to make gain antennas, directional antennas, and steerable antennas, but you
knew that from the ARRL Antenna Book. Antennas can be connected to junctions
that can then detect, mix, modulate, upconvert, downconvert, and the antenna
elements can be tuned to length so they favor certain wavelengths. Lots of
information can be sent.

Lightwave-scaled antennas can be biased to switch light. They are quite
fast!

There is also a shortening effect that hams already know about at radio
wavelengths that is more pronounced at light wavelengths, essentially due to
the inertia of the electron. Even so, practical antennas can be made by
growing them to length on a substrate, such as silicon. I have been working
on
this since the mid-90's.

Oh, the links

www.ambitcorp.com

has a list of some prior art patents in that area.

You can also look up W1XYZ in

www.qrz.com and see some more stuff that is related.

IBM's Phil Hobbs may be putting this to work to try to eliminate board to
board
or chip to chip interconnects which is a worthy goal. Phil is right as we
did
our first demo about a decade ago. How time flies.

Robert J Crowley

w1xyz


Interesting work, Bob. What is the relative efficiency (in collection) compared
to photovoltaics?

73,
Chip N1IR

(It would be slightly more fair if you had included an advance disclaimer
that the link was to YOUR company. Not a serious issue, but it took me a
minute to realize that you're referencing your own work (or that of your
company). Interesting links just the same...)


Huh? So what? I don't get it. Why the need for a disclaimer? What should the
disclaimer be? What's wrong with Bob referring to his own work?

73,
Chip N1IR

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"Dogs - nothing but dogs !!"
I claim utter victory.
Thanks for playing.

"Frank"
"Winning an argument on the Internet is like
winning at the Special Olympics; you're still
a retard." ~ Anonymous...

Tsk tsk tsk...

Ignoring the complete lack of compassion for those encumbered with severe
difficulties in life, your posting leads to the conclusion that we might as
well wrap-up the newsgroups, especially RRAA, and go home.




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"Fractenna"
Interesting work, Bob. What is the relative efficiency
(in collection) compared to photovoltaics?

Pending a response from W1XYZ, I'll propose that the answer is likely to be
that you're rather naive to assume that he - or his company - is that far
along with THAT technology (light antennas to replace photovoltaic cells).
I might be wrong, but I'll put it out there and we'll see.



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"Fractenna"
Huh? So what? I don't get it. Why the need for a
disclaimer? What should the disclaimer be? What's
wrong with Bob referring to his own work?


I didn't notice that Ambit was ~his~ company until I got to the 'About Us'
page. I overstated the issue. Apologies to W1XYZ.

I'm still awaiting further links that he or his company actual beat the
other team [per CNN news].




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I don't work in the area of photovoltaic cells at all - just not interested in
that area, though I think it is a worthy subject.

I do work with antenna like nanostructures for detection, reradiation, etc.

Bob