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MIMO RFIC delivers dual transmit/receive for Mobile WiMAX

Posted: 17 Dec 2007 ?? ?Print Version ?Bookmark and Share

Keywords:MIMO RFIC? Mobile WiMAX? baseband chip?

Sequans Communications has introduced the SQN1140 dual-channel MIMO RFIC designed to pair up with the SQN1130 Mobile WiMAX baseband chip for a total Mobile WiMAX 802.16e-2005 solution.

Targeted at Mobile WiMAX Wave 2, the SQN1140 delivers dual transmit and dual receive MIMO operation and supports the company's MIMO technologymimoMAX. Patent-pending mimoMAX enables the baseband SQN1130 to deliver maximum likelihood MIMO performance with low power consumption.

The SQN1140 RF with the SQN1130 baseband is claimed to be the highest performing, lowest power consuming Mobile WiMAX solution available today. The SQN1140 consumes 290mW of power in receive mode, and 195mW in transmit mode (single transmit). It also features integrated LNAs and support for several standby modes of operation to further minimize power consumption.

The device is already being integrated with the SQN1130 into multiple end user devices and SIP modules being developed by Sequans' ODM partners. The company is also developing a SIP combining the SQN1130 and SQN1140 and an ExpressCard reference design.

In addition to launching its own RFIC, Sequans has partners with other front end companies and is "uniquely able to provide our customers a complete range of RF options with our RF partners such as Maxim and PMC-Sierra, enabling them to address virtually any frequency band in any market around the world," said Ashok Dhuna, Sequans' VP of RF engineering.

The SQN1140 is the fourth Mobile WiMAX chip Sequans has delivered, following a Mobile WiMAX Wave 1 chip in 2006 and two baseband Mobile WiMAX Wave 2 chips in 2007 for base station and mobile stations. All chips are in volume production.

The MIMO RFIC is available to select Sequans customers and will be generally available in Q1 2008.

- Jack Shandle
Wireless Net DesignLine

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