| Computer Simulation of Soliton Interference Rejection Filter |
DEC 95 |
42 pages |
| Authors:
Jeffrey Himmel; John Kosinski; ARMY RESEARCH LAB FORT MONMOUTH NJ
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 | A soliton interference rejection filter which was recently proposed has been simulated with EEsof's Libra on a Sparc workstation. The filter depends on the use of solitons which are linearly independent in a nonlinear LC network. Such a filter would use the well-known sinusoidal recurrence phenomenon of solitons to separate, in time, a desired signal from a stronger undesired signal and conduct the undesired signal to ground at a specific ... |
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| Acceleration Sensitivity and Mode Shape Relationship Tests of Voltage Controlled Surface Acoustic Wave Oscillator |
AUG 95 |
35 pages |
| Authors:
Jeffrey Himmel; John Gualtieri; John Kosinski; ARMY RESEARCH LAB FORT MONMOUTH NJ
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| Acceleration sensitivity continues to be a significant problem is SAW oscillators. Reducing acceleration sensitivity of SAW oscillators requires an understanding of the nature and causes of acceleration sensitivity. One aspect of this is the correlation between acceleration sensitivity and the transverse mode behavior of SAW resonators. This report discusses the experimental investigation of such a correlation. A 98.5 MHz SAW resonator, for which the transverse modes have been previously measured ... |
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| Numerical Analysis of Permittivity with Loss in Isotropic Binary Composites |
JUN 92 |
124 pages |
| Authors:
Stephen R. Wallin; Marta J. Wallin; John Kosinski; Arthur Ballato; BATTELLE MEMORIAL INST COLUMBUS OH
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| The use of composite materials and structures to provide characteristics unattainable directly from the constituent materials is well known. Work has been undertaken to apply this principle to the development of new dielectric materials for use in capacitors with greater energy density, lower loss, and higher breakdown resistance. This report describes the numerical analysis of permittivity in isotropic binary composite dielectrics through three-dimensional computer simulation. |
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| Frequency Trimming Technique for Surface Acoustic Wave Devices |
JUN 92 |
37 pages |
| Authors:
Raymond McGowan; John Kosinski; Jeffrey Himmel; Richard Piekarz; Theodore Lukaszek; ARMY LAB COMMAND FORT MONMOUTH NJ ELECTRONICS TECHNOLOGY AND DEVICES LAB
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| Currently, there is an in-house effort to produce a vibration- insensitive surface acoustic wave (SAW) resonator to stabilize the outputs of state-of-the-art SAW oscillators. One of the key elements in this investigation is the development of a simple, yet sensitive frequency trimming procedure to adjust the resonator frequency of a fabricated device. Background and procedural information for performing frequency trimming on a SAW resonator using a wet isotropic chemical etch ... |
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| Numerical Analysis of Composite Dielectrics: Preliminary Results for Two Dimensions |
SEP 90 |
59 pages |
| Authors:
Stephen Wallin; John Kosinski; Arthur Ballato; ARMY LAB COMMAND FORT MONMOUTH NJ ELECTRONICS TECHNOLOGY AND DEVICES LAB
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| The use of composite materials and structures to provide characteristics unattainable directly from the constituent materials is well known. Recently, work has been undertaken to apply this principle to development of dielectric materials for energy storage applications. It is anticipated that this technology will provide materials for use in capacitors with greater energy density, lower loss, and higher breakdown resistance. This report describes the results of an effort to analytically ... |
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| Evaluation of Acceleration-Induced Phase Noise in Surface Acoustic Wave Devices |
MAR 90 |
15 pages |
| Authors:
John Kosinski; Arthur Ballato; Theodore Lukaszek; ARMY LAB COMMAND FORT MONMOUTH NJ ELECTRONICS TECHNOLOGY AND DEVICES LAB
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| Stable local oscillators based on surface acoustic wave (SAW) resonators have been proposed for future use in Army electronic systems designed for airborne and vehicular applications. The vibration spectra of these systems in conjunction with the vibration sensitivity of the SAW resonators leads to a degradation in oscillator phase noise, which may then exceed the total allowable system phase noise. This report details a study of the vibration-induced phase noise ... |
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| Lithium Tetraborate Transducer Cuts |
MAR 90 |
22 pages |
| Authors:
John Kosinski; Arthur Ballato; Theodore Lukaszek; ARMY LAB COMMAND FORT MONMOUTH NJ ELECTRONICS TECHNOLOGY AND DEVICES LAB
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| Lithium tetraborate is a tetragonal material of considerable promise for frequency control and signal processing applications. It exhibits piezoelectric coupling values that fall between those of lithium niobate and quartz, but possesses orientations for which the temperature coefficient of frequency and delay time is zero for bulk and surface acoustic waves. In this report, we discuss the properties of two doubly rotated bulk wave resonator orientations having both first- and ... |
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| Temperature and Coupling Behavior of Resonators and Transducers of Lithium Tetraborate Driven by Lateral and Thickness Fields |
JAN 90 |
88 pages |
| Authors:
Arthur Buffalo; John Kosinski; Muhammad Mizan; Theodore Lukaszek; ARMY LAB COMMAND FORT MONMOUTH NJ ELECTRONICS TECHNOLOGY AND DEVICES LAB
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| Lithium tetraborate is a tetragonal material of considerable promise for signal processing, transducer, and frequency control applications. It exhibits piezoelectric coupling values that fall between those of lithium niobate and quartz, but possesses orientations for which the temperature coefficient of frequency or delay time is zero for both bulk and surface acoustic waves. Calculations have previously been made for rotated y-cut, bulk wave plates, including the regions where the quasi-extensional ... |
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| Quartz Crystal Resonator Mass Loading |
AUG 89 |
28 pages |
| Authors:
John Kosinski; Arthur Ballato; S. Mallikarjun; ARMY LAB COMMAND FORT MONMOUTH NJ ELECTRONICS TECHNOLOGY AND DEVICES LAB
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| Ongoing work aimed at determining the physical properties of cultured quartz material from frequency measurements of bulk wave resonators has highlighted the need for accurate means of measuring the mass loading due to the electrodes. In this report, various methods of determining electrode mass loading are presented, and measurements of mass loading using several of these techniques are compared. Variations between the values of mass loading obtained by the various ... |
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