A 1.3 nJ/b IEEE 802.11ah Fully-Digital Polar Transmitter for IoT Applications.

Ao Ba,Yao-Hong Liu,Johan H. C. van den Heuvel,Paul Mateman,Benjamin Busze,Johan Dijkhuis,Christian Bachmann,Guido Dolmans,Kathleen Philips,Harmke de Groot

IEEE Journal of Solid-State Circuits（2016）

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摘要

A 1.3 nJ/b IEEE 802.11ah TX for IoT applications is presented. A fully-digital polar architecture consisting of an all-digital PLL-based frequency modulator and an AM-retiming ΔΣ switched-capacitor PA (SC-PA) achieves more than 10× power reduction than state-of-the-art OFDM TXs. Several circuit-design techniques such as LSB truncation error feedback are proposed to efficiently pre-process the AM/P...

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关键词

Frequency modulation,Clocks,OFDM,Internet of things,Transmitters,Switches

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