Passive temperature sensing tag for sensor networks

Hitoshi Kitayoshi, Kunio Sawaya

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

Abstract

A novel passive temperature sensing tag for a long reading range composed of a divided microstrip antenna and a rectifying circuit boosting the DC voltage is proposed. Experimental study of fabricated passive tag using varactor diodes, in which 30 m range response can be achieved in the 4 WEIRP reader at 860-960 MHz band, is described. Passive tags for temperature-monitoring system in the 4 W EIRP reader at 2.45 GHz band are also fabricated to demonstrate validity of proposed tags for a range longer than 9 m. The tags have sizes of 90x60x4 mm and 60x25x4 mm for 900 MHz and 2.45 GHz bands, respectively.

Original languageEnglish
Title of host publicationISAPE 2006 - 2006 7th International Symposium on Antennas, Propagation and EM Theory, Proceedings
Pages1126-1129
Number of pages4
Publication statusPublished - 2006 Dec 1
Event2006 7th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2006 - Guilin, China
Duration: 2006 Oct 262006 Oct 29

Other

Other2006 7th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2006
Country/TerritoryChina
CityGuilin
Period06/10/2606/10/29

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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