Enabling Multicarrier Backscattering Communications

Yuan Ding, George Goussetis, Ricardo Correia, Romwald Lihakanga, Nuno Borges Carvalho, Panagiotis Petridis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)
21 Downloads (Pure)


We demonstrate for the first time that a multicarrier signal, and in particular an OFDM signal, can be generated by backscattering a single carrier incoming electromagnetic wave. This is achieved by utilizing a semi-passive IQ backscatter modulator involving two transistors with varying biasing in a Wilkinson power divider architecture that has previously been proposed and demonstrated for Quadrature Amplitude Modulation (QAM) and Chirp Spread Spectrum (CSS) modulation schemes. The multicarrier backscattering signal is synthesized in time domain. This capability enables low-cost and low-power consumption tags to significantly improve the transmission data rate and potentially communicate with the commercial wireless networks such as WiFi and LTE.
Original languageEnglish
Title of host publication2020 IEEE MTT-S International Wireless Symposium (IWS)
ISBN (Electronic)9781728167039
Publication statusPublished - 1 Mar 2021
EventIEEE MTT-S International Wireless Symposium 2020 - Shanghai, China
Duration: 20 Sept 202023 Sept 2020


ConferenceIEEE MTT-S International Wireless Symposium 2020
Abbreviated titleIWS 2020
Internet address


  • Backscattering communications
  • Internet of Things (IoT)
  • multicarrier modulation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation


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