A 0.1–5GHz SDR transmitter with dual-mode power amplifier and digital-assisted I/Q imbalance calibration in 65nm CMOS

Abstract

A 0.1-5GHz Software-Defined Radio (SDR) transmitter in 65nm CMOS is presented. The transmitter integrates a dual-mode power amplifier (PA) for 0.1-1.5GHz low-cost narrowband applications (such as Industry Specific Applications, 2G, ZigBee), while a three-sub-band pre-power amplifier (PPA) is used for 0.45-5GHz high performance wideband applications (3G, 4G… (More)

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