Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
A Bleustein-Gulyaev-Shimizu Wave Resonator with 2 or 3 Resonances for Double Traps in TV and VCR (VTR)
View through CrossRef
A Bleustein-Gulyaev-Shimizu (BGS) wave with only a shear-horizontal (SH) displacement has the property of complete reflection at the free edge of a piezoelectric ceramic substrate. A BGS wave resonator utilizing this property is super-miniature and wide band, has a small capacitance ratio, and does not require frequency tuning. At present, two kinds of BGS resonators have been used as the additional traps at f
ap and f
as in TV·VCR VIF circuits. In this work, utilizing the responses generated due to the frequency characteristic of weighted IDT and even mode reflections at free edges of the substrate, we propose a new type of BGS resonator device which has two or three resonant frequencies for both f
ap and f
as. By applying this resonator in a VIF circuit, we have confirmed that it produces sufficient attenuations for practical use at both f
ap and f
as.
Title: A Bleustein-Gulyaev-Shimizu Wave Resonator with 2 or 3 Resonances for Double Traps in TV and VCR (VTR)
Description:
A Bleustein-Gulyaev-Shimizu (BGS) wave with only a shear-horizontal (SH) displacement has the property of complete reflection at the free edge of a piezoelectric ceramic substrate.
A BGS wave resonator utilizing this property is super-miniature and wide band, has a small capacitance ratio, and does not require frequency tuning.
At present, two kinds of BGS resonators have been used as the additional traps at f
ap and f
as in TV·VCR VIF circuits.
In this work, utilizing the responses generated due to the frequency characteristic of weighted IDT and even mode reflections at free edges of the substrate, we propose a new type of BGS resonator device which has two or three resonant frequencies for both f
ap and f
as.
By applying this resonator in a VIF circuit, we have confirmed that it produces sufficient attenuations for practical use at both f
ap and f
as.
Related Results
Effect of Velvet Tamarind (Dialium cochinchinense Pierre) Residues on Properties and Structure of Mackerel Fish Crackers
Effect of Velvet Tamarind (Dialium cochinchinense Pierre) Residues on Properties and Structure of Mackerel Fish Crackers
Velvet tamarind residue (VTR), a secondary product of velvet tamarind (VT) juice production,
is predominantly found in the southernmost provinces of Thailand. This study explored t...
Abstract 4140514: Virtual Versus Center-Based Cardiac Rehabilitation: A Comparison of Outcomes and Cost
Abstract 4140514: Virtual Versus Center-Based Cardiac Rehabilitation: A Comparison of Outcomes and Cost
Introduction:
Despite robust evidence supporting improved outcomes in eligible patients, cardiac rehabilitation (CR) remains underutilized. Virtual cardiac rehab (VCR) ...
Thermodynamic analysis of simple and modified organic Rankine cycle and vapor compression refrigeration (ORC–VCR) systems
Thermodynamic analysis of simple and modified organic Rankine cycle and vapor compression refrigeration (ORC–VCR) systems
AbstractThis paper compares the thermodynamic performance of two ORC–VCR systems using the zeotropic mixture (Hexane/R245fa); one is a simple ORC–VCR system whereas the second one ...
Transversely Coupled Resonator Filters Utilizing Reflection of Bleustein-Gulyaev-Shimizu Wave at Free Edges of Substrate
Transversely Coupled Resonator Filters Utilizing Reflection of Bleustein-Gulyaev-Shimizu Wave at Free Edges of Substrate
Smaller-sized and lower insertion loss surface acoustic wave (SAW) filters are urgently required for mobile telecommunications. We describe here that miniature, low-loss transverse...
Retrospective Comparison of Outcomes and Cost of a Virtual vs. Center-Based Cardiac Rehabilitation Program
Retrospective Comparison of Outcomes and Cost of a Virtual vs. Center-Based Cardiac Rehabilitation Program
ABSTRACT
Background
Despite robust evidence supporting an association with improved outcomes in eligible patients, cardiac reha...
(Invited) Engineering Multipolar Resonances in Nonlocal Metasurfaces
(Invited) Engineering Multipolar Resonances in Nonlocal Metasurfaces
When arranged in a metasurface, enhancing field interactions within scattering elements enables precise control over incident light phase and amplitude. This arrangement induces sc...
Integration of visible thinking routine in Nurul Fikri Islamic School as an effort to train thinking skills
Integration of visible thinking routine in Nurul Fikri Islamic School as an effort to train thinking skills
This study aimed to analyze the implementation of the Visible Thinking Routine (VTR) in Nurul Fikri Islamic School as an approach to training students' thinking skills. Using the s...
Propagation factors influencing observations of resonances of atmospheric gravity waves
Propagation factors influencing observations of resonances of atmospheric gravity waves
<p>Observations of the ionosphere with the airglow, GPS-TEC, and HF radar techniques reveal a resonance-kind response of the middle and upper atmosphere to broad-band...