Chirp based backscatter modulation

Ricardo Correia, Yuan Ding, Spyridion-Nektarios Daskalakis, Panagiotis Petridis, George Goussetis, Apostolos Georgiadis, Nuno Borges Carvalho

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

9 Citations (Scopus)
57 Downloads (Pure)


The Internet of Things (IoT) envisions ubiquitous, cheap and low data rate connectivity between humans, machines and objects. The main technology that can satisfy this vision is wireless communication technology, but to embed this into objects at a large scale, some requirements like battery-free and long range communication should be considered.In this work we propose a modulator that can backscatter different chirps, based on Chirp Spread Spectrum (CSS) modulation which can achieve high sensitivities, meaning long range communication. Moreover, we prove with this design that we can reflect backscatter Long Range (LoRa) preamble symbols with a Spreading Factor (SF) of 7 and 125 kHz of bandwidth. Thus, it will be possible to reuse the LoRa receivers already developed.
Original languageEnglish
Title of host publication2019 IEEE MTT-S International Microwave Symposium (IMS)
Number of pages4
ISBN (Electronic)9781728113098
Publication statusPublished - 7 May 2019
EventIEEE MTT-S International Microwave Symposium 2019 - Boston, United States
Duration: 2 Jun 20197 Jun 2019

Publication series

NameIEEE MTT-S International Microwave Symposium (IMS)
ISSN (Electronic)2576-7216


ConferenceIEEE MTT-S International Microwave Symposium 2019
Country/TerritoryUnited States
Internet address


  • Backscatter modulation
  • chirp spread spectrum
  • internet of things
  • low power

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Chirp based backscatter modulation'. Together they form a unique fingerprint.

Cite this