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Fractal antenna aids design of tiny handsets

Posted: 01 Jun 2007 ?? ?Print Version ?Bookmark and Share

Keywords:quad-band GSM? quad-band GSM antenna? fractal antenna? miniSD?

Fractus S.A., a pioneer of fractal antenna technology, has developed an antenna measuring just 40.8-by-10.74-by-7.45mm that has enabled Swedish mobile phone maker Neonode to create an ultracompact handset.

The Neonode N2, claimed to be one of the smallest and lightest handsets yetmeasuring 47-by-77-by-14.7mmincorporates the miniature internal quad-band GSM antenna for the device.

Despite being positioned extremely close to other electronic components, the antenna does not interfere with any of these components. Traditionally, the antenna has to be isolated as much as possible from other components to avoid RF interference.

The N2 handset features a 5.08cm optical touchscreen displayso it has no keypada 2Mpixel camera, miniSD memory expansion and a multimedia player capable of playing back MP3, AAC, WAV, MPEG4 and WMV formats as well as supporting Internet radio recording.

"Fractus helped Neonode to achieve great antenna integration for such a small device," said Alfonso Sanz, product manager, products and services division, Fractus. He added the antenna design evolved together with that of the device in a smooth way.

Fractus pioneered the use of the space-filling and multi-level properties of fractals for use in multiband antennas in wireless devices and its IP and designs are used by companies such as ST Microelectronics, Samsung, Sagem, Atheros Communications and CSR.

Sweden-based Neonode, which specializes in small form factor handsets, is in the process of being acquired by SBE Inc., a specialist developer of storage networking devices.

SBE said Tuesday (May 29) it has agreed to amend the previously announced merger agreement with Neonode that extends the date on which the companies can terminate the deal if it has not closed by September 30.

In the meantime, SBE has loaned the Swedish group $1 million for working capital.

- John Walko
EE Times Europe

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