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Tracking tech IP targets handset RF front ends

Posted: 04 Feb 2009 ?? ?Print Version ?Bookmark and Share

Keywords:IP tracking technology? RF ends front? LTE WiMAX Nujira?

Power amplifier specialist Nujira Ltd has launched its Coolteq-I high-accuracy tracking technology IP targeting handset RF front ends for 3G, LTE and WiMAX devices that are likely to hit the market in 2011.

Nujira will be demonstrating the technology at next month's Mobile World Congress in Barcelona, Spain and said an evaluation system is being made available now for about $50,000.

Test chips for Coolteq-I (for low-power) are scheduled for Q3 09.

Late last year, EE Times Europe was given a sneak preview of some of the early test results with the technology and how it extends Nujira's reach from its position of a modules supplier to the cellular infrastructure suppliers to a company selling intellectual property for handset suppliers.

Nujira CEO Tim Haynes said the company will be targeting some of the big names that supply power amplifiers and power management devices that may want to integrate the Coolteq-I IP into their devices. He would not say whether the technology would be better integrated into one or the other category.

Power efficiency
Coolteq-I is said to halve the cost and double the battery life of a 4G terminal RF front end compared with existing technologies, as well as covering three to five times the bandwidth of a standard design. Nujira suggests only two power amps would be needed to design a front end covering all 14 bands defined in the 3GPP for LTE, and all of the operating modes, compared with the seven or more devices needed with existing technologies.

The results showed that a handset PA with Nujira's envelope tracking technology is twice as power-efficient during HSUPA transmission, and 1.5x better during W-CDMA transmission compared with the same power amplifier without high accuracy tracking.

"This is potentially an industry-changing technology," suggested Haynes.

- John Walko
EE Times Europe

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