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Article

Quality Factor Effect on the Wireless Range of Microstrip Patch Antenna Strain Sensors

by
Ali Daliri
1,*,
Amir Galehdar
1,
Wayne S. T. Rowe
1,
Sabu John
2,
Chun H. Wang
2 and
Kamran Ghorbani
1
1
School of Electrical and Computer Engineering, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
2
School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, PO Box 71, Bundoora, Victoria 3083, Australia
*
Author to whom correspondence should be addressed.
Sensors 2014, 14(1), 595-605; https://doi.org/10.3390/s140100595
Submission received: 20 November 2013 / Revised: 20 December 2013 / Accepted: 23 December 2013 / Published: 2 January 2014
(This article belongs to the Section Physical Sensors)
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Abstract

Recently introduced passive wireless strain sensors based on microstrip patch antennas have shown great potential for reliable health and usage monitoring in aerospace and civil industries. However, the wireless interrogation range of these sensors is limited to few centimeters, which restricts their practical application. This paper presents an investigation on the effect of circular microstrip patch antenna (CMPA) design on the quality factor and the maximum practical wireless reading range of the sensor. The results reveal that by using appropriate substrate materials the interrogation distance of the CMPA sensor can be increased four-fold, from the previously reported 5 to 20 cm, thus improving considerably the viability of this type of wireless sensors for strain measurement and damage detection.
Keywords: wireless strain sensor; microstrip patch antenna; quality factor; structural health monitoring; passive sensor wireless strain sensor; microstrip patch antenna; quality factor; structural health monitoring; passive sensor

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MDPI and ACS Style

Daliri, A.; Galehdar, A.; Rowe, W.S.T.; John, S.; Wang, C.H.; Ghorbani, K. Quality Factor Effect on the Wireless Range of Microstrip Patch Antenna Strain Sensors. Sensors 2014, 14, 595-605. https://doi.org/10.3390/s140100595

AMA Style

Daliri A, Galehdar A, Rowe WST, John S, Wang CH, Ghorbani K. Quality Factor Effect on the Wireless Range of Microstrip Patch Antenna Strain Sensors. Sensors. 2014; 14(1):595-605. https://doi.org/10.3390/s140100595

Chicago/Turabian Style

Daliri, Ali, Amir Galehdar, Wayne S. T. Rowe, Sabu John, Chun H. Wang, and Kamran Ghorbani. 2014. "Quality Factor Effect on the Wireless Range of Microstrip Patch Antenna Strain Sensors" Sensors 14, no. 1: 595-605. https://doi.org/10.3390/s140100595

APA Style

Daliri, A., Galehdar, A., Rowe, W. S. T., John, S., Wang, C. H., & Ghorbani, K. (2014). Quality Factor Effect on the Wireless Range of Microstrip Patch Antenna Strain Sensors. Sensors, 14(1), 595-605. https://doi.org/10.3390/s140100595

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