IEEE Journal of Solid-State Circuits · 2013 · 102 citations · 33 references
EngineeringCommunicationElectrical EngineeringLow-power DesignMicroelectronicsWireless CommunicationsCmos Circuit DesignDigital Integrated Circuit DesignMixed-signal Integrated Circuit DesignModulationRadio-frequency Integrated CircuitsWireless Power TransferDigital FilteringLow-power Wireless CommunicationNoise FloorPhase ModulationPower ConsumptionRadio-frequency Integrated Circuit DesignRf Cmos DesignRf Power Management
A 65-nm digitally modulated polar TX for WLAN 802.11g is fully integrated along with baseband digital filtering. The TX employs dynamic impedance modulation to improve efficiency at back-off powers. High-bandwidth phase modulation is achieved efficiently with an open-loop architecture. Operating from 1.2-V/1-V supplies, the TX delivers 16.8 dBm average power at -28-dB EVM with 24.5% drain efficiency, 22% PAE, 19.3% system efficiency, and 247-mW power consumption including the entire on-chip TX chain; the noise floor is -125 dBm/Hz at 200-MHz offset without external filtering.
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The class-E/F family of ZVS switching amplifiers
S. Kee, Ichiro Aoki, Ali Hajimiri et al. · IEEE Transactions on Microwave Theory and Techniques · 2003 · 292 citations