ISOAntenna: Novel isolator providing two independent antenna ports for mobile applications
Assuring stability and linearity of amplifiers in
transmitters is quite inevitable in modern WLAN or
UMTS applications. Presently circuits use large size
isolators to ensure linearity and stability in
transmitters. The isolator prevents any feedback
from one or more irradiative antennas back to the rfsignal
driving electronics. How ever this technology
shows some disadvantages. One problem is the
amount of space an isolator needs. The high
manufacturing costs and the fact that isolators can
not be realized in every technology are a second
draw back. Additionally the high losses of the isolator
restrict the operating time of battery driven devices.
The Department for Communication Technologies of
the University of Applied Sciences Aachen has
developed a new technology called ISOAntenna
which is a balanced antenna design. Tw o antennas
can directly be connected to the driving rf-electronics
while a flexible motion for WLAN or UMTS mobile
units is strongly enhanced by the use of a multi
antenna approach. The invention combines
sufficiently high quality performance and inexpensive
yet robust antennas capable of establishing high
quality w ireless links.
Further Information: PDF
Phone: +49 (0)208/94105 0
Dipl.-Ing. Alfred Schillert
firstname.lastname@example.org | TechnologieAllianz e.V.
The most recent press releases about innovation >>>
Die letzten 5 Focus-News des innovations-reports im Überblick:
For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.
In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...
Researchers from Göttingen University discover additional function of opsins
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
Researchers embark on aerial campaign over Northeast Greenland
On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...
Data collected on ocean-ice interactions in the little-researched regions of the far south
The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...
At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.
When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...