Designing a passive retrodirective wireless sensor

Md Mazidul Islam; Kimmo Rasilainen; Sabin Kumar Karki; Ville Viikari

doi:10.1109/LAWP.2017.2671411

Designing a passive retrodirective wireless sensor

Md Mazidul Islam, Kimmo Rasilainen, Sabin Kumar Karki, Ville Viikari

Research output: Contribution to journal › Article › Scientific › peer-review

13 Citations (Scopus)

Abstract

This letter presents a wireless sensing approach implemented using a fully passive sensor element and a retrodirective antenna array. The utilized sensor is based on frequency modulation, and the proposed concept is investigated both theoretically and experimentally. Results of the study show that the designed sensor platform can be used to detect a change in sensor capacitance across a distance of up to 12 m. Furthermore, the retrodirective sensor can cover an angular range of almost-90 to +90, which is considerably broader than what can be obtained with a simpler passive RFID sensor.

Original language	English
Article number	7858689
Pages (from-to)	1739-1742
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	16
DOIs	https://doi.org/10.1109/LAWP.2017.2671411
Publication status	Published - 2017
MoE publication type	A1 Journal article-refereed

Keywords

Antenna array
Diode
Modulator
oscillator
Passive
retrodirective
Sensor
Wireless

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10.1109/LAWP.2017.2671411

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AU - Karki, Sabin Kumar

AU - Viikari, Ville

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KW - Antenna array

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KW - Modulator

KW - oscillator

KW - Passive

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KW - Sensor

KW - Wireless

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Designing a passive retrodirective wireless sensor

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Designing a passive retrodirective wireless sensor

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