[Antennas] Interesting article written by a ham

[Phil Florig]

Hi all,

Might want to check the following out which I saw in the NASA Tech Briefs.

 >>>>>>>
ANTENNA TECHNOLOGY
Rob Vincent, an employee in the University of Rhode Island's Physics 
Department,
has invented distributed-load, monopole antennas that are smaller, produce high
efficiency, retain good to excellent bandwidth, and have multiple applications.
"The Holy Grail of antenna technology is to create a small antenna with high
efficiency and wide bandwidth," explains Vincent. "According to current theory,
you have to give up one of the three-size, efficiency, or bandwidth-to achieve
the other two."

Tests confirm that the antennas are one third to one ninth of their full size
counterparts. Normally, smaller antennas are only 8% to 15% efficient. These
antennas achieved 80% to 100% efficiency as compared to the larger antennas.

With this technology it will be possible to double, at minimum, the range of
walkie-talkies used by police, fire, and other municipal personnel. Naval
ships, baby monitors, and portable antennas for military use are other
applications. An antenna could be mounted on a chip in a cell phone and
be applied to wireless local area networks. Another application deals with
radio frequency identification, which is expected someday to replace the
barcode system.

For more information, visit: http://link.abpi.net/l.php?20040610A7
 >>>>>>>

By the way Rob is a ham.  His call I don't know and may be on this 
reflector and
if so hope he doesn't mind the posting.....  HI...

Just passing this along for information.

Thanks to all for their postings on the reflector and I enjoy and learn from
reading them.  Some great info here.

73   Phil/W9IXX

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Philip Florig           e-mail:pflorig at ieee.org
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                 team member:AH1A-C6DX-J3A-VP2MX
                                     MARS:AAR4XX
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