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A 0.62nJ/b multi-standard WiFi/BLE wideband digital polar TX with dynamic FM correction and AM alias suppression for IoT applications

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Author: Ba,A. · Heuvel, J. van den · Mateman, P. · Zhou, C. · Busze, B. · Song, M. · He, Y. · Ding, M. · Dijkhuis, J. · Tiurin, E. · Madampu, S. · Boer, P. · Traferro, S. · Zhang, Y. · Liu, Y.-H. · Bachmann, C. · Philips, K.
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source:Hanke, A.Turner, S., Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium 2018 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2018, 10 June 2018 through 12 June 2018, June, 308-311
Identifier: 842986
doi: doi:10.1109/RFIC.2018.8428999
ISBN: 9781538645451
Article number: 8428999
Keywords: BLE · IEEE 802.11g · IoT · Wi-Fi · Amplitude modulation · Energy efficiency · Frequency modulation · Internet of things · Radio waves · Transmitters · Wi-Fi · Wireless local area networks (WLAN) · Digitally controlled · IOT applications · Polar architectures · Suppression technique · Switched capacitor · Transmitters (Tx) · IEEE Standards


A WiFi (IEEE 802.11g) and BLE combo transmitter (TX) for IoT applications is presented. A wideband digital polar architecture consisting of an all-digital PLL-based frequency modulator and a switched-capacitor digitally-controlled PA achieves optimal energy efficiency for both WiFi and BLE. The dynamic FM correction and AM alias suppression techniques are applied to support 20MHz 802.11g. Implemented in 28nm CMOS technology with 0.9V supply, this highly reconfigurable TX achieves -22dB EVM for 802.11g up to MCS4 and 1.6% FSK error for BLE. The transmitter only occupies 0.65 mm2 and consumes 27mW and 15mW with OdBm output power for WiFi and BLE, respectively. It results in an excellent energy efficiency of 0.62nJ/b. © 2018 IEEE.