Non-linear resonating sensor and a method

Mark Allen; Ville Viikari; Timo Varpula; Ari Alastalo; Heikki Seppä; Tomi Mattila

Non-linear resonating sensor and a method

Mark Allen (Inventor), Ville Viikari (Inventor), Timo Varpula (Inventor), Ari Alastalo (Inventor), Heikki Seppä (Inventor), Tomi Mattila (Inventor)

VTT Technical Research Centre of Finland

Research output: Patent

Abstract

Described herein is a passive wireless resonating non-linear sensor that is typically based on a ferroelectric varactor. The sensor replies its data at an intermodulation frequency when a reader device illuminates it at two closely-located frequencies. Furthermore, described herein is a general intermodulation read-out principle for passive wireless sensors. A sensor utilizes a mixing element, such as a varactor and it can be equipped with a capacitive, inductive, or resistive sensor element. When the sensor is illuminated with signals with two frequencies it replies the sensor data at an intermodulation frequency.

Original language	English
Patent number	US2012235847
IPC	H01Q 15/ 00 A I
Priority date	29/03/2012
Publication status	Published - 20 Sept 2012
MoE publication type	H1 Granted patent

Cite this

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abstract = "Described herein is a passive wireless resonating non-linear sensor that is typically based on a ferroelectric varactor. The sensor replies its data at an intermodulation frequency when a reader device illuminates it at two closely-located frequencies. Furthermore, described herein is a general intermodulation read-out principle for passive wireless sensors. A sensor utilizes a mixing element, such as a varactor and it can be equipped with a capacitive, inductive, or resistive sensor element. When the sensor is illuminated with signals with two frequencies it replies the sensor data at an intermodulation frequency.",

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T1 - Non-linear resonating sensor and a method

AU - Allen, Mark

AU - Viikari, Ville

AU - Varpula, Timo

AU - Alastalo, Ari

AU - Seppä, Heikki

AU - Mattila, Tomi

PY - 2012/9/20

Y1 - 2012/9/20

N2 - Described herein is a passive wireless resonating non-linear sensor that is typically based on a ferroelectric varactor. The sensor replies its data at an intermodulation frequency when a reader device illuminates it at two closely-located frequencies. Furthermore, described herein is a general intermodulation read-out principle for passive wireless sensors. A sensor utilizes a mixing element, such as a varactor and it can be equipped with a capacitive, inductive, or resistive sensor element. When the sensor is illuminated with signals with two frequencies it replies the sensor data at an intermodulation frequency.

AB - Described herein is a passive wireless resonating non-linear sensor that is typically based on a ferroelectric varactor. The sensor replies its data at an intermodulation frequency when a reader device illuminates it at two closely-located frequencies. Furthermore, described herein is a general intermodulation read-out principle for passive wireless sensors. A sensor utilizes a mixing element, such as a varactor and it can be equipped with a capacitive, inductive, or resistive sensor element. When the sensor is illuminated with signals with two frequencies it replies the sensor data at an intermodulation frequency.

M3 - Patent

M1 - US2012235847

ER -

Non-linear resonating sensor and a method

Abstract

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