Microwave analysis and experimentation for improved backscatter radio

Stylianos D. Assimonis*, Eleftherios Kampianakis, Aggelos Bletsas

*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

This work aims to improve the RFID RF front-end performance via microwave analysis. It is well known that the magnitude of the complex reflection coefficient difference, between two loads connected to the tag-antenna, is a crucial design parameter. On the other hand, the loads are usually considered ideal and there is no microwave analysis of electromagnetic interference between the antenna and the load control circuit. This study demonstrates through measurements that the assumption of ideal loads is not realistic and magnitude of reflection coefficient difference is reduced in practice, offering degraded backscatter radio performance (compared to the ideal case). A microwave analysis is utilized in order to assess coupling between the control circuit and the antenna/RF switch (that selects the loads). As a collateral dividend, the magnitude of reflection coefficient difference is increased with microwave analysis and experimental measurements and a specific methodology is proposed.

Original languageEnglish
Title of host publicationIEEE 8th European Conference on Antennas and Propagation, EuCAP 2014
Pages3228-3229
Number of pages2
DOIs
Publication statusPublished - 18 Sep 2014
Event8th European Conference on Antennas and Propagation, EuCAP 2014 - The Hague, Netherlands
Duration: 06 Apr 201411 Apr 2014
http://www.eucap2014.org/

Conference

Conference8th European Conference on Antennas and Propagation, EuCAP 2014
CountryNetherlands
CityThe Hague
Period06/04/201411/04/2014
Internet address

Keywords

  • Backscatter
  • RF identification (RFID)
  • Wireless Sensing
  • wireless sensor networks
  • microwaves

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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