Enabling Multicarrier Backscattering Communications

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

Research output: Contribution to conferencePaperpeer-review

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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
Number of pages3
Publication statusAccepted/In press - 25 Mar 2020
EventIEEE MTT-S International Wireless Symposium 2020 - Shanghai, China
Duration: 20 Sep 202023 Sep 2020


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


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