Results 241 to 250 of about 590,483 (299)
Some of the next articles are maybe not open access.
1997 IEEE MTT-S International Microwave Symposium Digest, 2002
This paper will discuss some of the technology approaches currently being pursued to extend the SAW device operating frequencies to the 1-6 GHz range. This range of frequencies has become commercially interesting in the past few years due to the large increase in wireless applications, especially cellular and mobile communications.
J.H. Kines, D.C. Malocha
openaire +1 more source
This paper will discuss some of the technology approaches currently being pursued to extend the SAW device operating frequencies to the 1-6 GHz range. This range of frequencies has become commercially interesting in the past few years due to the large increase in wireless applications, especially cellular and mobile communications.
J.H. Kines, D.C. Malocha
openaire +1 more source
1995 IEEE Ultrasonics Symposium. Proceedings. An International Symposium, 2002
SAW characteristics in a ZnO/diamond/Si structure were investigated by theoretical calculations and experiments using poly-crystalline diamond films. It was found that the 1st mode in the ZnO/IDT/diamond/Si structure has the velocity of 10,500 m/s and K/sup 2/ value of 1.5%, and the 2nd mode in the IDT/ZnO/diamond/Si structure has the velocity of 11 ...
H. Nakahata +7 more
openaire +1 more source
SAW characteristics in a ZnO/diamond/Si structure were investigated by theoretical calculations and experiments using poly-crystalline diamond films. It was found that the 1st mode in the ZnO/IDT/diamond/Si structure has the velocity of 10,500 m/s and K/sup 2/ value of 1.5%, and the 2nd mode in the IDT/ZnO/diamond/Si structure has the velocity of 11 ...
H. Nakahata +7 more
openaire +1 more source
International Journal of High Speed Electronics and Systems, 2000
Here we describe recent high frequency SAW technology based on ultra-fine fabrication techniques using electron beam (EB) exposure direct writing and low-loss wide-band filter applications beyond 5 GHz. We especially consider the propagation property of SAWs in the 10 GHz range, which is important for low-loss characteristics, the fabrication ...
HIROYUKI ODAGAWA, KAZUHIKO YAMANOUCHI
openaire +2 more sources
Here we describe recent high frequency SAW technology based on ultra-fine fabrication techniques using electron beam (EB) exposure direct writing and low-loss wide-band filter applications beyond 5 GHz. We especially consider the propagation property of SAWs in the 10 GHz range, which is important for low-loss characteristics, the fabrication ...
HIROYUKI ODAGAWA, KAZUHIKO YAMANOUCHI
openaire +2 more sources
GHz frequency ZnO/Si SAW device
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2008The demand for high-frequency low-loss filters generates intensive research on innovative wave guide solutions. In this work, a GHz SAW device based on a ZnO/Si structure was fabricated using classical UV photolithography. The thickness of the piezoelectric thin film was optimized and a specific interdigital transducer structure was used to generate ...
Laurent Le, Brizoual +5 more
openaire +2 more sources
SAW devices for consumer communication applications
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1993An overview of surface acoustic wave (SAW) filter techniques available for different applications is given. Techniques for TV IF applications are outlined, and typical structures are presented. This is followed by a discussion of applications for SAW resonators.
Ruppel, Clemens C. W. +11 more
openaire +3 more sources
PERFORMANCE EVALUATION OF SAW DEVICES BY SIMULATION
International Journal of Modelling and Simulation, 2004AbstractSurface acoustic wave (SAW) devices have been used since the early 1990s as critical components in many radio frequency (RF) transmitters and receivers due to their small size, efficient operation, and excellent performance characteristics. In today’s wireless applications, the number of passive SAW components used is on the increase.
Atashbar, M. Z. +2 more
openaire +2 more sources
Piezoelectric AlN film for SAW devices applications
1993 Proceedings IEEE Ultrasonics Symposium, 1993Polycrystalline AlN films with the c-axis oriented normal to the substrate surface, were deposited by RF reactive diode magnetron sputtering on fused quartz, silicon and sapphire. The films were characterized as to their morphology, optic and acoustic characteristics.
CALIENDO, C +3 more
openaire +4 more sources
International Journal of High Speed Electronics and Systems, 2000
Thin-films play a significant role in surface acoustic wave (SAW) technology. Thin metal films are essential for the generation and detection of SAWs on piezoelectric subtrates, can provide for directional control, influence the velocity and propagation loss, and can be configured to produce a wide variety of time and frequency signal processing ...
openaire +1 more source
Thin-films play a significant role in surface acoustic wave (SAW) technology. Thin metal films are essential for the generation and detection of SAWs on piezoelectric subtrates, can provide for directional control, influence the velocity and propagation loss, and can be configured to produce a wide variety of time and frequency signal processing ...
openaire +1 more source
Proceedings of the IEEE, 1976
An analytical model is developed to determine the velocity of surface acoustic waves in strained media. It is shown that, in addition to the variations in path length, the SAW propagation may depend significantly on the velocity change with strain.
A.L. Nalamwar, M. Epstein
openaire +1 more source
An analytical model is developed to determine the velocity of surface acoustic waves in strained media. It is shown that, in addition to the variations in path length, the SAW propagation may depend significantly on the velocity change with strain.
A.L. Nalamwar, M. Epstein
openaire +1 more source
Proceedings of the 1998 IEEE International Frequency Control Symposium (Cat. No.98CH36165), 2002
This paper gives a historical account of the development of Rayleigh-wave, or surface acoustic wave (SAW), devices for applications in electronics. The subject was spurred on initially by the requirements of pulse compression radar, and became a practical reality with the planar interdigital transducer, dating from 1965.
openaire +1 more source
This paper gives a historical account of the development of Rayleigh-wave, or surface acoustic wave (SAW), devices for applications in electronics. The subject was spurred on initially by the requirements of pulse compression radar, and became a practical reality with the planar interdigital transducer, dating from 1965.
openaire +1 more source