“…16 and 17 respectively. Receivers are categorized into three architectures: Clocked-demodulators [13,[34][35][36][46][47][48][49][50][51][52][53][54], envelope-detectors [3,22,23,30,39,55], and super-regenerative [19,26,32,41,56,57]. Figure 17 shows that some clocked-demodulator-based receivers consume just as low power as envelope-detector-based and super-regenerative receivers by replacing a PLL with a high-Q resonator [34], or turning off the PLL during the receiver operation [13].…”