¡El SKY65230-11 Intera nFEM combines two complete dual-band transmit/receive chains in one compact RF front end module optimized for 2 x 2 MIMO (multiple in—multiple out) operation, in compliance with the 802.11n draft standard. ¡El SKY65230-11 includes two 5 GHz PAs and two 2 GHz PAs, each with integrated input filtering for 3–4 GHz rejection, and two temperature-compensated, directional power detectors with 20 dB dynamic range. Also included are low loss, high rejection GaAs diplexers and diversity switches which provide high linearity in all transmit paths and low loss in all receive paths. Additionally, a third antenna port is added to provide switch diversity capability on both chains. All RF ports are matched to 50 W.¡El SKY65230-11 Intera nFEM achieves outstanding gain matching between both 2 GHz transmit paths and both 5 GHz transmit paths, which is a critical requirement for MIMO operation. This is accomplished though mirrored layout symmetry.¡El SKY65230-11 is packaged in a lead (Pb)-free, RoHS-compliant laminate package, which measures 140 mm2. This tiny footprint enables more functionality in less printed circuit board space.