scholarly journals An Electronic-Nose Sensor Node Based on a Polymer-Coated Surface Acoustic Wave Array for Wireless Sensor Network Applications

Sensors ◽  
2011 ◽  
Vol 11 (5) ◽  
pp. 4609-4621 ◽  
Author(s):  
Kea-Tiong Tang ◽  
Cheng-Han Li ◽  
Shih-Wen Chiu
Keyword(s):  
Wireless Sensor Network ◽  
Acoustic Wave ◽  
Sensor Network ◽  
Surface Acoustic Wave ◽  
Electronic Nose ◽  
Sensor Node ◽  
Wireless Sensor ◽  
Network Applications ◽  
Coated Surface

scholarly journals Surface Acoustic Wave Resonators for Wireless Sensor Network Applications in the 433.92 MHz ISM Band

Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4294
Author(s):  
Evangelos Moutoulas ◽  
Muhammad Hamidullah ◽  
Themis Prodromakis
Keyword(s):  
Wireless Sensor Network ◽  
Acoustic Wave ◽  
Sensor Network ◽  
Surface Acoustic Wave ◽  
Low Cost ◽  
Wireless Sensor ◽  
Quality Factors ◽  
Ism Band ◽  
The Impact ◽  
Saw Resonators

Surface acoustic wave (SAW) resonators are low cost devices that can operate wirelessly on a received radio frequency (RF) signal with no requirement for an additional power source. Multiple SAW resonators operating as transponders that form a wireless sensor network (WSN), often need to operate at tightly spaced, different frequencies inside the industrial, scientific and medical (ISM) bands. This requires nanometer precision in the design and fabrication processes. Here, we present results demonstrating a reliable and repeatable fabrication process that yields at least four arrays on a single 4-inch wafer. Each array consists of four single-port resonators with center frequencies allocated inside four different sub-bands that have less than 50 kHz bandwidth and quality factors exceeding 8000. We see promise of standard, low-cost photolithography techniques being used to fabricate multiple SAW resonators with different center resonances all inside the 433.05 MHz–434.79 MHz ISM band and a mere 100 kHz spacing. We achieved that by leveraging the intrinsic process variation of photolithography and the impact of the metallization ratio and metal thickness in rendering distinct resonant frequencies.

Measurement of a compact Boomarang-shaped microstrip antenna for wireless sensor network applications

2021 ◽  
Vol 68 ◽  
pp. 105-110
Author(s):  
M.N. Shakib ◽  
M. Moghavvemi ◽  
M.A. Rahman ◽  
R.M. Ramli ◽  
H.S. Lim ◽  
...  
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Microstrip Antenna ◽  
Wireless Sensor ◽  
Network Applications

scholarly journals CrimeSPOT : A language and runtime for developing active wireless sensor network applications

2013 ◽  
Vol 78 (10) ◽  
pp. 1951-1970 ◽  
Author(s):  
Coen De Roover ◽  
Christophe Scholliers ◽  
Wouter Amerijckx ◽  
Theo D’Hondt ◽  
Wolfgang De Meuter
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Wireless Sensor ◽  
Network Applications
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