ITKG----AUTH. 17Mil FLOAT 9Mil+
An old release but may provide you with additional info.....
>>For Immediate Release
June 23, 1998
INTEGRAL'S NEW CDMA PCS ANTENNA
PASSES RIGOROUS EXAMINATION BY
PREMIER US TESTING FACILITY
San Diego: Integral Technologies, Inc. ("ITI") announces the successful independent
testing of its revolutionary new CDMA PCS antenna in cooperation with General
Atomics (www.ga.com), a San Diego, California, based research and development
firm. The tests were conducted in conjunction with General Atomics' ongoing research
into digital CDMA-based telecommunications technology executed by a General
Atomics contractor, Composite Optics, Inc. (www.coi-world.com).
This new cellular telephone antenna will provide superior ease of use, cost, and
performance for the fastest growing segment of the multibillion dollar mobile
telecommunications industry, as well as for other antenna applications requiring small
size and enhanced performance. The antennas tested were developed for Integral
Technologies by its subsidiary Emergent Technologies Corporation. Based on the
company's pioneering research into the patented contrawound toroidal helical antenna
(CTHA), this new antenna project represents an evolutionary step forward in
lightweight, extremely compact, high-performance mobile antennas that can be mounted
directly on printed circuit boards providing superior cost factors for mass production.
In initial head-to-head tests the new antenna was up to 800% more sensitive than the
factory-installed, conventional antenna when pointed directly toward or away from the
base station, as is often the case with mobile users, and on average was equal or
superior in performance in all other positions. This increased performance would result
in improved reception under varying conditions, as well as a more efficient use of the
power provided by the rechargeable batteries in mobile devices.
The tests were performed under the sponsorship of General Atomics at the Composite
Optics, Inc. anechoic chamber in Rancho Bernardo, California. This is the same facility
in which much of the "stealth" radar avoidance technology was tested and produced.
General Atomics' Telecommunications Group has developed a rapid deployment,
airborne Code Division Multiple Access ("CDMA") platform for military and civilian
applications.
Based on these initial test results, the new antennae are almost perfectly omnidirectional
around the azimuth (+/- 0.5 dBm), compared to +/- 1 dBm for the factory antenna. The
antenna exhibited an omnidirectional pattern through the elevations, +/- 2.5 dBm, which
was markedly better than the factory-installed antenna, which measured +/- 7 dBm. The
Integral antenna showed a 41% lower Frame Error Rate than the factory-installed
antenna, which is an indicator of superior signal quality.
"Our new design is clearly superior for mobile applications due to its near-isotrophic
radiation pattern and very small size," said Mark Williams, CEO and President of
Integral Technologies. "The antenna performed much better than the conventional
antenna when pointed at or away from the base station; it showed a 12 dBm
improvement over the factory-installed monopole,
which translates into an 800% improvement in gain. We are looking forward to the flight
tests later this week."
The CTHA is an electrically small, omnidirectional antenna which is typically about
1/60th the size of a conventional dipole for the same frequency. The Integral CTHA
CDMA antennae are roughly the size of a nickel – a 5 cent coin. The small size is a
significant factor for space-conscious mobile radio design engineers. The antenna can be
embedded into cellphones and other mobile communications equipment. There is
nothing to pull-up and nothing to break off. The near-isotrophic radiation pattern
improves overall performance for mobile users because the cellular phone will work well
in any position – up, down, or sideways.
"Upcoming matching network improvements should increase gain even further. In short,
the combination of small size and big performance makes the design very attractive for
mobile systems designers," said Williams.
The tests were conducted on June 10, 1998, by Composite Optics, Inc. at its anechoic
chamber in Rancho Bernardo, California, one of the largest anechoic chambers in the
USA. The tests were observed by technical staff and executives of General Atomics,
Integral Technologies, and Emergent Technologies. Test equipment included a Hewlitt
Packard HP8924C CDMA base station simulator and new Samsung SCH1000 and
Sony CM-D600S CDMA PCS handsets. Data in this press release was produced with
the factory-installed antenna in its fully-extended position; in the fully-retracted position,
the factory-installed antenna performance dropped 1 to 12 dBm, depending on the
angle to the base station. Flight tests using the new Integral antenna are scheduled for
later this week.
General Atomics is a high-tech engineering firm specializing in nuclear reactors, airborne
payload systems, and airborne communications systems. The General Atomics project
involves an airborne CDMA system which can provide digital PCS cellular coverage
over large cities and rural areas at a fraction the cost of terrestrial-based systems. The
General Atomics system utilizes off-the-shelf customer handsets which are available
from numerous vendors. General Atomics is particularly interested in Integral's CTHA
CDMA antennas because of their superior omnidirectionality, which is especially
important when communicating with a moving airborne base station.
The Composite Optics, Inc. anechoic chamber in San Diego is famous not only for its
mammoth size but also for the consistent, exacting quality of work performed there.
Integral's management was impressed by the facilities, the equipment, and by the
competency of the technical staff and management who are clearly on top of the RF
game. Integral anticipates working with them in the coming months on other new
antenna designs.
Integral Technologies is in the business of developing, manufacturing, and selling a
variety of new technologies including antenna systems, plasma ignition devices with a
variety of industrial and automotive applications, and 2D and 3D imaging systems for
quality control and counterfeit detection. Through its subsidiary, Emergent Technologies
Corporation, the company holds a license on base patents from West Virginia
University, and is continuing its own proprietary research. Integral is developing CTHA
solutions at a variety of frequencies, including HF, VHF, UHF, AMPS, narrow band
PCS, GPS, PCS, and wireless LAN.<< |
