Wireless passive SAW sensors using single-electrode-type IDT structures as programmable reflectors

• Published in: Sensors and actuators. A. Physical. Vol. 122; no. 2; pp. 203 - 208
• Main Authors: Fu, Qiuyun, Stab, Helmut, Fischer, Wolf-Joachim
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2005
• Subjects: Actuators; Deposition; Devices; Film thickness; Passive; Programmable reflector; Reflection coefficient; Reflectors; Sensors; Single-electrode-type IDT; Surface acoustic waves; Wireless passive SAW sensors; Single-electrode-type IDT; Passive; Programmable reflector; Wireless passive SAW sensors

Sensor information can be read out wirelessly by an antenna if the surface acoustic wave (SAW) delay line is connected to an external classical sensor. This is a passive device also called impedance-loaded SAW sensor. In the last decade, many researchers have made great efforts researching such devi...