Selective Wake-Up Receiver for Dense Environment

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Jafari Sharemi, Hamid | 2021

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 54228 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Sharif Bakhtiar, Mehrdad
Abstract:
An ultra-low-power wake-up receiver is proposed, which reduces the power consumption significantly under the two-mode duty-cycling and with negligible latency. Due to the use of an accurate LO and high Q BB filters, the receiver shows a perfect selectivity in the frequency domain, and appropriately fits practical dense environment applications. In this receiver, four start frame bits (SFB) are received at the low data rate of 1 kbps in the MO mode, and after entering the ID mode, a long wake-up pattern is received at the high data rate of 100 kbps. Therefore, the latency is limited to the SFBs and is roughly 4 msec. The proposed wake-up receiver is designed and fabricated in TSMC 180 nm technology with a core size of 1.4 mm2 for the target frequency of 902-928 MHz. Simulations prove that the receiver dissipates an average power of 13.68 µW in its regular operation and achieves a sensitivity and SIR (@ 1 MHz Offset) of -87 dBm and -58.5 dBr respectively
Keywords:
Wake-up ; Wake-Up Receiver ; Ultra Low Power Receiver ; Dense Environments ; Frequency Selectivity

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