A folded monopole shaped novel soil moisture and salinity sensor for precision agriculture based chipless RFID applications

Shuvashis Dey, Rahul Bhattacharyya, Nemai Karmakar, Sanjay Sarma

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

Abstract

This paper focuses on the design and analysis of an inexpensive novel chipless RFID sensing scheme for soil moisture and salinity content detection. The sensor is designed at the UHF RFID band so that it can be tweaked easily to a chip-based RFID sensor. Alongside the designed sensor, a theoretical soil model with different moisture and salinity levels is simulated here. A fabricated prototype is used to measure the variation of moisture and salinity levels in sandy soil. Both the simulated and measured results exhibit frequency shift of sensor resonance with moisture content variation at non-saline conditions. However, if the soil is saline, the resonance amplitude gets reduced with increased salinity levels and exhibits moisture content independence and hence no frequency variation.

Original languageEnglish
Title of host publication2019 IEEE MTT-S International Microwave and RF Conference (IMARC)
EditorsGeorge E. Ponchak, Shalabh Gupta
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages1-4
Number of pages4
ISBN (Electronic)9781728140407
ISBN (Print)9781728140414
DOIs
Publication statusPublished - 2019
EventIEEE MTT-S International Microwave and RF Conference 2019 - Mumbai, India
Duration: 13 Dec 201915 Dec 2019

Publication series

Name2019 IEEE MTT-S International Microwave and RF Conference, IMARC 2019
PublisherIEEE, Institute of Electrical and Electronics Engineers
ISSN (Print)2377-9144
ISSN (Electronic)2377-9152

Conference

ConferenceIEEE MTT-S International Microwave and RF Conference 2019
Abbreviated titleIMARC 2019
CountryIndia
CityMumbai
Period13/12/1915/12/19

Keywords

  • Chipless
  • FDR
  • Folded monopole
  • Precision agriculture
  • RFID
  • Soil Salinity
  • UHF

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