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Antenna switches boost 4G/LTE-A mobile wireless apps

Posted: 31 Jul 2013 ?? ?Print Version ?Bookmark and Share

Keywords:antenna switch? UltraCMOS?

Peregrine Semiconductor Corp. has extended its family of MultiSwitch STeP8 dual single-pole, seven throw (SP7T/SP7T) UltraCMOS antenna switches optimised to solve the carrier aggregation challenges of 4G mobile wireless applications as adopted by RF front-end module suppliers. The PE42128x devices support simultaneous multi-band operation of up to 14 frequency bands while delivering exceptional linearity, insertion loss performance and small size, boasted the firm.

The LTE-A protocol calls for carrier aggregation, or the simultaneous reception of multiple frequency bands, which improves data delivery speed to dramatically improve consumer experience. Peregrine's new PE42128x antenna switches are designed specifically to solve the challenges of carrier aggregation. Each of the new MultiSwitch devices features an innovative combination of two SP7T switches in a single IC to support 14 different frequency bands including simultaneous multi-band operation.

With HaRP technology enhancements, the PE42128x promises to deliver high linearity with an IIP3 of 75dBm, as well as extremely low insertion loss (0.35dB @ 900MHz; and 0.45dB at 1900MHz) and high isolation (38dB at 698-2170MHz; and 33dB at 2500-2690MHz). The switches also feature 2fo and 3fo for LTE of less than -80dBm at 700MHz. High linearity and isolation performance are critical in LTE-Advanced Smartphones to ensure that radio signals don't spill into other bands during multi-band operation.

The flip chip PE42128x switches are available in RoHS compliant, chip-scale packaging for SMD placement. Samples, volume-production quantities and pricing are available.

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