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An IEEE 802.11ah-compliant RF transceiver with a direct-conversion receiver and a fully-digital polar transmitter is presented. For the receiver, a current-mode RF front-end covers the mandatory modes worldwide from 755MHz to 928MHz. The digitally-assisted analog baseband achieves variable gains and bandwidths with an automatic gain/DC-offset calibration. Implemented in 40nm CMOS with 1V supply, this...
A 2.4GHz transceiver SoC, operating at minimum 0.9V, is presented as a power-efficient and cost-effective solution for the coming Internet of Things (IoT) platform. The transceiver is compliant with Bluetooth Low Energy (BLE) 4.0/4.2/5.0 PHY and 802.15.4 standards. The measured sensitivity is −93dBm at 1V, and TX output power is 1dBm. Direct battery attachment is feasible, due to the 1.5µW deep-sleep...
This paper presents an ultra-low-power (ULP) IEEE 802.11ah fully-digital polar transmitter (TX). IEEE 802.11ah is a new Wi-Fi protocol optimized for Internet-of-Everything (IoE) applications. Compared to other IoE standards like Bluetooth or ZigBee, its sub-GHz carrier frequency and mandatory modes with 1MHz/2MHz channel bandwidths allow devices to operate in a longer range with scalable data-rates...
This paper presents an ultra-low-power (ULP) fully-integrated Bluetooth Low-Energy(BLE)/IEEE802.15.4/proprietary RF SoC for Internet-of-Things applications. Ubiquitous wireless sensors connected through cellular devices are becoming widely used in everyday life. A ULP RF transceiver [1-3] is one of the most critical components that enables these emerging applications, as it can consume up to 90% of...
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