Design of a 2×2 antenna-array RF power emitter with object detection function for sensor location identification

Sheng Fan Yang, Chun Cheng Chen, Tzuen Hsi Huang, Chun Yi Lu, Pei Jung Chung

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

1 Citation (Scopus)

Abstract

In this paper, we propose a 915 MHz RF power emitter integrated with a 2×2 patch antenna array and four switchable reflection-type phase shifters with nominal phase delay of -90°, 0°, or +90°. For achieving the object detection function, a centered harmonic antenna at 1830 MHz is also integrated to identify the location of sensor by receiving the harmonic wave reflected from the sensor. In our experiment, a harmonic tag formed by a dual-band Yagi-Uda antenna and a loaded diode is developed to emulate a sensor with rectification for energy harvest. By beam scanning and detecting the maximum reflected power increment, the location of the harmonic tag can be identified successfully at a distance within an angle of+25°.

Original languageEnglish
Title of host publication2015 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-BIO 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages65-66
Number of pages2
ISBN (Electronic)9781479985432
DOIs
Publication statusPublished - 2015 Oct 21
EventIEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-BIO 2015 - Taipei, Taiwan
Duration: 2015 Sep 212015 Sep 23

Publication series

Name2015 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-BIO 2015 - Proceedings

Other

OtherIEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-BIO 2015
Country/TerritoryTaiwan
CityTaipei
Period15-09-2115-09-23

All Science Journal Classification (ASJC) codes

  • Health Informatics
  • Biomedical Engineering

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