Mathematic mode Force Equilibrium Equation Electronic Charge equilibrium equation Cristoffel Equation ∑∑0+∑∑=到 i=1l=1m=1 or ox i=1m=1 ∑∑∑cs-∑∑cm 0 i=1k=1l=1 I i=l m=l Ox ax
Mathematic Model Force Equilibrium Equation Electronic Charge Equilibrium Equation Cristoffel Equation
Outline Concept Materials Mathematic Model Type of SAW Device Typical Applications Development Tendency Research on sTu
Outline Concept Materials Mathematic Model Type of SAW Device Typical Applications Development Tendency Research on SJTU
Type of SAW devices 1) Reflective delay lines Interrogation Impulse Suppresses environmental echoes Propagation path is used twice RF Response resulting in smaller devices Sensor Echoes RF Interrogation Antenna Interdigital Transducer 2)Resonators A□ RF Respo Also a good choice to achieve needed delay Re flector Interdigital Transduce Reflector RF Interrogation Signal Antenna 3)Dispersive delay lines W RF R interrogation Interdigital Transducer Interdigital Transducer Piezoelectric Crystal Antenna 4)Impedance sensors RF Classical sensors combined with SAW IDT is used as a reflector loaded by the sensor or switch Piezoelectric Crystal extemal Sensor) Change in the transmission and reflection properties
Type of SAW devices
Outline Concept Materials Mathematic Model Type of SAW Device Typical Applications Development Tendency Research on sTu
Outline Concept Materials Mathematic Model Type of SAW Device Typical Applications Development Tendency Research on SJTU
Typical Applications Delay line Convolver Oscillator sensor filter
Typical Applications sensor Delay line Convolver Oscillator filter