An 11 pJ/Bit Multichannel OOK/FSK/QPSK Transmitter With Multi-Phase Injection-Locking and Frequency Multiplication Techniques. - Kuang-Wei Cheng; Sheng-Kai Chang; Shao-Ting Chang; Si-Lou Li; Yu-Chieh Huang (IEEE Trans. Circuits Syst. I Regul. Pap., 2023)