C.-W.P. Huang, C. Masse, C. Zelley, C. Christmas, T. Whittaker, J. Soricelli, W. Vaillancourt, A. Parolin
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Ultra Linear Dual-band WLAN Front-End Module for 802.11 a/b/g/n Applications with Wide Voltage and Temperature Range Operation
A compact 7 times 8 times 1.1 mm3 dual-band Wireless LAN front-end module (FEM) having high linearity and wide temperature (-40 to 85degC) and voltage (2.7 to 4.5 V) operating ranges is presented. The FEM features 28 dB gain and 19.8 dBm at 54 Mbps with EVM < 3% and 230 mA for 2.4 to 2.5 GHz. For 4.9 to 5.9 GHz, the FEM delivers 25 dB gain and 16.5 dBm linear output power at 54 Mbps with EVM < 3% and 190 mA. The FEM's receive chains feature low insertion losses, 1.5 and 2.0 dB for low and high band respectively, and >25 dB RX to TX isolation. All these unique features simplify 802.11 a/b/g and 802.1 in radio designs.
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