A Proximity Wireless Sensor Based on Backscatter Communication

被引：0

作者：

Servent, Angel ^{[1
]}

Daskalakis, Spyros ^{[2
]}

Collado, Ana ^{[2
]}

Georgiadis, Apostolos ^{[2
]}

机构：

[1] Univ Politecn Cataluna, Sch Engn Telecommun & Aerosp Castelldefels, Castelldels 08860, Bsrcelona, Spain

[2] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

2017 INTERNATIONAL APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY SYMPOSIUM - ITALY (ACES) | 2017年

基金：

欧盟地平线“2020”;

关键词：

RFID; power decteor; antenna based sensor; proximity sensor; IoT;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A proximity sensor is designed as an antenna-based sensor, operating at 2.4 GHz. The operating principle relies on the fact that when an object approaches an antenna, it affects its radiation properties and its input impedance. A diode power detector is used to sense the antenna input impedance variation as a reflected wave at the input terminals of the antenna. The detector output analog dc voltage is read using an analog-to-digital (ADC) of a low power microcontroller and subsequently it is conveyed back to a reader using UHF backscatter communication based on the WISP architecture.

引用

页数：2

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