A 2.4GHz mixed-signal polar power amplifier with low-power integrated filtering in 65nm CMOS

Debopriyo Chowdhury,Lu Ye,Elad Alon,Ali M. Niknejad

Custom Integrated Circuits Conference（2010）

引用 29|浏览8

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摘要

A 65nm digitally-modulated polar transmitter incorporates a fully-integrated 2.4GHz efficient switching Inverse Class D power amplifier. Low power digital filtering on the amplitude path helps remove spectral images for coexistence. The transmitter integrates the complete LO distribution network and digital drivers. Operating from a 1-V supply, the PA has 21.8dBm peak output power with 44% efficiency. Simple static predistortion helps the transmitter meet EVM and mask requirements of 802.11g 54Mbps WLAN standard with 18% average efficiency.

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关键词

CMOS integrated circuits,digital filters,low-power electronics,microwave integrated circuits,power amplifiers,802.11g WLAN standard,CMOS,LO distribution network,bit rate 54 Mbit/s,digital drivers,digitally-modulated polar transmitter,efficiency 18 percent,frequency 2.4 GHz,inverse class D power amplifier,low power digital filtering,low-power integrated filtering,mixed-signal polar power amplifier,size 65 nm,static predistortion,voltage 1 V

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