A 915MHz Blocker-Enhanced Wake-Up Receiver with Frequency-Hopping Two-Tone Modulation Achieving 53dB Tolerance to In-Band Interference
H Ren, D Ye, B Chen, X Jin, W Gong… - 2022 IEEE Radio …, 2022 - ieeexplore.ieee.org
2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC), 2022•ieeexplore.ieee.org
A 915MHz ultra-low-power blocker-enhanced wake-up receiver (BE-WuRx) is presented in
a 65nm CMOS process. Employing the proposed frequency-hopping two-tone modulation
(FH-TTM), the BE-WuRx can dynamically convert the in-band blocker power to data power,
and achieves a− 63.6 dBm sensitivity without blocker and a− 90dBm enhanced sensitivity
with a− 25dBm CW interferer, while just consuming 19μW. With the− 63.6 dBm sensitivity,
the BE-WuRx performs 53dB tolerance to the in-band blocker, exhibiting 14dB improvement …
a 65nm CMOS process. Employing the proposed frequency-hopping two-tone modulation
(FH-TTM), the BE-WuRx can dynamically convert the in-band blocker power to data power,
and achieves a− 63.6 dBm sensitivity without blocker and a− 90dBm enhanced sensitivity
with a− 25dBm CW interferer, while just consuming 19μW. With the− 63.6 dBm sensitivity,
the BE-WuRx performs 53dB tolerance to the in-band blocker, exhibiting 14dB improvement …
A 915MHz ultra-low-power blocker-enhanced wake- up receiver (BE-WuRx) is presented in a 65nm CMOS process. Employing the proposed frequency-hopping two-tone modulation (FH-TTM), the BE-WuRx can dynamically convert the in-band blocker power to data power, and achieves a −63.6dBm sensitivity without blocker and a −90dBm enhanced sensitivity with a −25dBm CW interferer, while just consuming . With the −63.6dBm sensitivity, the BE-WuRx performs 53dB tolerance to the in-band blocker, exhibiting 14dB improvement compared to the case that FH- TTM is off. The wake-up latency is 6.4ms for a quiet channel and 6.4 to 64ms for a congested channel.
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