ELEKTRONIKOS ĮTAISAI 2007 VGTU Elektronikos [email protected] Acoustic Wave...
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ELEKTRONIKOS ĮTAISAI 2007 VGTU Elektronikos fakultetas [email protected] Acoustic Wave Electronic Devices 1. Integrated circuits (ICs) were proposed by J.Kilby and R.Noyce in 1959. 2. At present small ICs contain to 10 8 elements. The problem of miniaturization of electronic circuits (especially – digital circuits) is solved. 3. Integrated circuits do not solve some problems: • Usually only the circuits similar to those used in discrete electronics can be integrated in the ICs. • The ICs contain only transistors, diodes, resistors and sometimes capacitors. Practically inductive elements, necessary for filters, delay lines and other components, cannot be realized in ICs. 4. New methods of processing of electronic signals become possible on the base of the new effects. As a result, the functional electronics (optical, acoustic, magnetic, spin electronics) was developed. 5. As a result of the search of ways to miniaturize filters, delay lines and other components, acoustic waves have been used for processing of signals.
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Transcript of ELEKTRONIKOS ĮTAISAI 2007 VGTU Elektronikos [email protected] Acoustic Wave...
ELEKTRONIKOS ĮTAISAI 2007
VGTU Elektronikos fakultetas [email protected]
Acoustic Wave Electronic Devices
1. Integrated circuits (ICs) were proposed by J.Kilby and R.Noyce in 1959.
2. At present small ICs contain to 108 elements. The problem of miniaturization of electronic circuits (especially – digital circuits) is solved.
3. Integrated circuits do not solve some problems:
• Usually only the circuits similar to those used in discrete electronics can be integrated in the ICs.
• The ICs contain only transistors, diodes, resistors and sometimes capacitors. Practically inductive elements, necessary for filters, delay lines and other components, cannot be realized in ICs.
4. New methods of processing of electronic signals become possible on the base of the new effects. As a result, the functional electronics (optical, acoustic, magnetic, spin electronics) was developed.
5. As a result of the search of ways to miniaturize filters, delay lines and other components, acoustic waves have been used for processing of signals.
6. Surface acoustic wave devices are the most important acoustic wave devices.
ELEKTRONIKOS ĮTAISAI 2007
VGTU Elektronikos fakultetas [email protected]
MAJOR APPLICATIONS FOR SAW DEVICES •Mobile Communications •Satellite Communications •Automotive Electronics •Consumer Electronics •Remote Control, Wireless Security Systems •GPS •Base Station •TV / VCR / STB sets & CATV Systems •Data Transmission Systems •RFID Systems
ELEKTRONIKOS ĮTAISAI 2007
VGTU Elektronikos fakultetas [email protected]
Understanding Surface Acoustic Wave (SAW) Devices for Mobile and Wireless Applications and Design Techniques by Colin K. Campbell, Ph.D., D.Sc.
AMPS - Advanced Mobile Phone Service
ELEKTRONIKOS ĮTAISAI 2007
VGTU Elektronikos fakultetas [email protected]
(I-Q) modulation/demodulation - In-phase/Quadrature-phase modulation/demodulation
ELEKTRONIKOS ĮTAISAI 2007
VGTU Elektronikos fakultetas [email protected]
Nanoscale Surface Acoustic Wave Sensors for Early Cancer Detection
ELEKTRONIKOS ĮTAISAI 2007
VGTU Elektronikos fakultetas [email protected]
http://www.kettering.edu/~drussell/Demos/waves/wavemotion.html
F:\Documents\WDocs\EI_skaidrės\Longitudinal and Transverse Wave Motion.htm
Link
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