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April 26 2006 at 02:37 PM
GSM and CDMA mobile phones benefit directly with expanded coverage and services in a smaller form-factor
Barcelona, 26 April 2006 - Fractus, the fractal antenna technology pioneer, has developed an antenna technology which lowers PCB resonance, enabling easier provision of multi-band performance, greater flexibility in antenna design and, in some cases, improved SAR value management. All of these factors are critical for the development of next generation handset and mobile devices.
Fractus’ proprietary BandXpand™ technology is linked to the antenna on one side of the circuit board. This shapes the current electromagnetic path, enabling resonance at lower frequencies, thus making it easier to have additional frequencies with broader bandwidth in both mobile handsets and other wireless devices.
Antenna designers can then fine-tune frequencies to deliver improved lower frequency performance and multi-band functionality.
An antenna designer could, for example, develop a single quadband antenna with GSM 900/1800 and CDMA 800/1900 capabilities without the need for a switchplexer, and a separate UMTS antenna, isolated from the quadband antenna by 12dB – producing a device that could handle two way voice calls anywhere in the world at the same time as downloading a multimedia file.
“Fractus BandXpand™ provides another tool for mobile designers to enable smaller, high capability handsets and devices, so antenna design can conform even more to the mechanics required by device OEMs and ODMs,” said Fractus’ Dr. Carles Puente, CTO. “This technology means antenna and device designers, working together, have greater flexibility in terms of antenna and device performance than ever before.”
Fractus has developed demonstrators of its BandXpandTM technology which are available for demonstration to key clients.