CMOS Radio-Frequency and Biomedical SoCs
Date Issued
2016
Date
2016
Author(s)
Hsieh, Jian-Yu
Abstract
Recently, internet of things (IOT), including consumer electronics, smart home, and telemedicine, is important. IOT integrating communications and internets needs low-power radio-frequency (RF) and biomedical products. In this dissertation, several low-power techniques have been developed for RF and biomedical circuits for extending enough battery life. And degrading circuit performances resulting from the low-power techniques have also been resolved in the following sections. The RF circuits include a 2.4 ~ 6 GHz wideband low-noise amplifier (LNA), a 2.4 GHz quasi-circulator, and a V-band (57.2 ~ 65.8 GHz) image-reject receiver front-end. The biomedical circuits include a MICS-band (402 ~ 405 MHz) OOK/FSK receiver, and a 10-MHz remotely-controlled locomotive IC driven by electrolytic bubbles and wireless powering. The LNA uses the LC load-reusing and multiple-gated techniques with IIP3 of -3.9 ~ -1.9 dBm and a power consumption of 6 mW. The quasi-circulator uses a current-reuse technique and adjustable signal cancellation. The measured isolation from transmitter to receiver, |S31|, is 68 dB with a power consumption of 1.5 mW and a chip size of 0.62 mm2. The V-band receiver front-end with high-speed auto wake-up and gain controls varies power consumptions depending on the input RF signal power. The measured power consumptions are 19 mW and 46mW, respectively. IP1dB also can be adjusted between −25.2 dBm and −22.5 dBm. The measured image-reject ratio (IRR) is greater than 32 dB. The chip size is 0.82 mm2. The MICS-band OOK-FSK receiver uses wake-up, multiple-gated, subharmonic-mixing, and body-forward-biasing techniques with measured power consumptions of 129 μW and 352 μW, respectively. The locomotive IC can move on electrolyte with a speed up to 0.3 mm/s with power consumption of 207.4 μW and 180μW, respectively.
Subjects
Wideband LNA
quasi-circulator
image-reject receiver front-end
OOK/FSK receiver
remotely-controlled locomotive IC driven by electrolytic bubbles and wireless powering
Type
thesis
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