Saqib Subhan, Eric A. M. Klumperink, Amir Ghaffari, Gerard J. M. Wienk, Bram Nauta. A 100-800 MHz 8-Path Polyphase Transmitter With Mixer Duty-Cycle Control Achieving $<-$40 dBc for ALL Harmonics. J. Solid-State Circuits, 49(3):595-607, 2014. [doi]
Abstract is missing.