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8176784 |
Elastic wave device and electronic component
To provide an elastic wave device that is small sized and in which a frequency fluctuation due to a change with time hardly occurs, and an electronic component using the above elastic wave device....
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8174165 |
Surface acoustic wave device and manufacturing method of the same surface acoustic wave device
A surface acoustic wave device includes a piezoelectric element, an IDT electrode formed on the piezoelectric element for exciting a principal wave, a reflection film formed on the piezoelectric...
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8169278 |
Surface acoustic wave device and duplexer
A surface acoustic wave device in which miniaturization and a flat design implemented, is resistant to a deformation responsive to a pressure of a molten resin in the formation of a mold resin...
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8159110 |
Fluid actuator, and heat generating device and analysis device using the same
A fluid actuator includes a piezoelectric body (31), a fluid channel (2) having the piezoelectric body (31) on a part of the inner wall thereof and enabling a fluid to move inside, and a surface...
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8138858 |
Architectures using multiple dual-mode surface acoustic wave devices
The present invention relates to dual-mode SAW devices (DMSDs), which may allow for clean layouts of SAW device elements and provide low impedance with reduced insertion loss, and may increase...
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8134278 |
Surface acoustic wave device and surface acoustic wave biosensor
A surface acoustic wave device, including: a piezoelectric substrate; an interdigitated transducer electrode disposed on the substrate; an oxide film disposed on surface of the interdigitated...
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8134426 |
Two-track surface acoustic wave structure without internal pads
The present disclosure relates to a two-track surface acoustic wave (SAW) device that has a reduced size compared to a traditional two-track SAW device by eliminating an internal ground connection...
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8115561 |
Lamb-wave resonator and oscillator
A Lamb-wave resonator includes: a piezoelectric substrate; an IDT electrode disposed on one principal surface of the piezoelectric substrate, having bus bar electrodes each connecting one ends of a...
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8106726 |
Elastic surface wave device comprising dummy electrodes
A surface acoustic wave device includes a pair of reflectors and an interdigital transducer having a cross electrode having a interdigitated portion and a dummy portion and a dummy electrode. The...
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8102225 |
Acoustic wave filter device
An acoustic wave filter device having a greatly reduced size includes a balance-unbalance conversion function and an input/output impedance ratio of about 1. The acoustic wave filter device...
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8094008 |
Coded acoustic wave sensors and system using time diversity
An apparatus and method for distinguishing between sensors that are to be wirelessly detected is provided. An interrogator device uses different, distinct time delays in the sensing signals when...
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8084917 |
Surface acoustic wave resonator, surface acoustic wave oscillator, and surface acoustic wave module device
A surface acoustic wave resonator includes a piezoelectric substrate and an interdigital transducer (IDT) that includes electrode fingers exciting a surface acoustic wave on the piezoelectric...
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8084918 |
Surface acoustic wave device and surface acoustic wave oscillator
A surface acoustic wave device, includes: an interdigital transducer serving as an electrode pattern to excite a Rayleigh surface acoustic wave, the interdigital transducer including a...
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8068001 |
Saw filter featuring impedance transformation
A surface acoustic wave (SAW) filter includes at least one first electroacoustic transducer, and at least one second electroacoustic transducer. The at least one first electroacoustic transducer...
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8063534 |
Surface acoustic wave device and surface acoustic wave oscillator
A surface acoustic wave device, includes: an interdigital transducer serving as an electrode pattern to excite a Rayleigh surface acoustic wave, the interdigital transducer including a...
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8049583 |
Acoustic wave filter comprising a reflector having an oblique slit
An acoustic wave filter includes a piezoelectric substrate, an IDT (interdigital transducer) formed on the piezoelectric substrate, and reflectors located at both sides of the IDT and composed of...
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8035463 |
Lamb-wave resonator and oscillator
A Lamb-wave resonator includes: a piezoelectric substrate; an interdigital transducer electrode formed on a main surface of the piezoelectric substrate, the interdigital transducer electrode...
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8018122 |
Surface acoustic wave device, module device, oscillation circuit, and method for manufacturing surface acoustic wave device
An SH wave type surface acoustic wave device includes a piezoelectric substrate and an IDT electrode provided on the piezoelectric substrate and constituted of Al or an alloy mainly containing Al...
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8008838 |
Lamb wave type elastic wave device
Provided is a device of a high-frequency resonator using Lamb wave type elastic wave having excellent frequency temperature characteristics, the device having a significantly small frequency...
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8004370 |
Surface acoustic wave element, surface acoustic wave apparatus, and communication apparatus
The invention provides a surface acoustic wave element having improved heat dissipation and power durability. These characteristics are achieved by configuring the SAW such that either of an input...
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7990234 |
Elastic wave filter
The object of the present invention is to provide an elastic wave filter capable of suppressing deterioration of a pass band and realizing to downsize. In the elastic wave filter of the present...
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7939987 |
Acoustic wave device employing reflective elements for confining elastic energy
An acoustic wave device includes electrodes carried on a surface of a piezoelectric material and an array of reflective obstacles such that elastic energy resulting from a piezoelectric effect is...
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7940147 |
Balanced acoustic wave filter device and composite filter
In an acoustic wave filter device, first and second acoustic wave filter elements are connected in parallel to an unbalance terminal. Of first to third IDTs, the second and third IDTs are connected...
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7915785 |
Reflective and slanted array channelized sensor arrays
Reflective and slanted array channelized sensor arrays having a broadband source providing acoustic energy to a reflective or slanted array that reflects a portion of the incident signal to one or...
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7915976 |
Surface acoustic wave resonator and ladder-type filter
A surface acoustic wave resonator is constructed such that cross widths of an IDT electrode are weighted so that the cross widths are reduced as they move outward in the surface acoustic wave...
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7915786 |
Elastic boundary wave device
An elastic boundary wave device of the present invention includes a plurality of elastic boundary wave elements. The elastic boundary wave elements each include a piezoelectric material layer, an...
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7911116 |
Surface acoustic wave device and method of fabricating the same
A surface acoustic wave device includes a piezoelectric substrate, an interdigital transducer (IDT) formed on the piezoelectric substrate, an interconnection electrode that is provided on the...
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7902716 |
Surface acoustic wave device and communication apparatus
To provide a surface elastic wave apparatus that suppresses occurrence of fine ripples within a pass band, improves insertion loss and enhances the degree of balance. First and second surface...
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7878063 |
Simultaneous sample manipulation and sensing using surface acoustic waves
The present invention provides a hexagonal, delay line surface acoustic wave device fabricated on a a piezoelectric substrate, such as lithium tantalate, coated with an insulating waveguide on to...
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7849582 |
SAW architecture with series connected interdigitated transducers
An acoustic cavity of a surface acoustic wave (SAW) architecture is defined on a piezoelectric substrate by two acoustic reflectors are formed on a piezoelectric substrate. The surface acoustic...
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7816837 |
Surface acoustic wave sensor
A surface acoustic wave sensor for detecting a target substance by measuring the change in frequency due to the mass applied to a reaction membrane placed on a surface acoustic wave element having...
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7800281 |
Acoustic wave filters using photo-definable epoxy for suppression of unwanted acoustic energy
A SAW filter comprising an input transducer and an output transducer fabricated on a piezoelectric substrate and an epoxy based photo-definable acoustic absorber on the substrate for suppressing...
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7786827 |
Surface acoustic wave device, transmitter, and transceiver
A surface acoustic wave device comprises a surface acoustic wave element, including: a piezoelectric substrate, a first interdigital transducer unit having a first interdigital transducer and a...
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7764144 |
Elastic wave filter with tapered IDT electrodes
In an elastic wave filter in which an IDT is configured in a tapered shape, an object of the present invention is to provide a technology capable of suppressing deterioration of attenuation...
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7728483 |
Lamb wave type frequency device and method thereof
A Lamb wave type high frequency device comprises: a piezoelectric substrate; an interdigital transducer (IDT) electrode formed on a first main surface of the piezoelectric substrates a reinforcing...
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7710221 |
Elastic wave device
In an elastic wave device including an input side electrode and an output side electrode being a resonant single-phase unidirectional transducers (RSPUDT) provided with respective pairs of bus bars...
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7696675 |
Surface acoustic wave device and electronic apparatus
A surface acoustic wave device includes: a quartz substrate; and at least a single-type IDT electrode provided on a surface of the quartz substrate for exciting a Rayleigh surface acoustic wave in...
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7688161 |
Acoustic wave device and filter using the same
An acoustic wave device includes a piezoelectric substrate, a resonator having comb electrodes that are provided above the piezoelectric substrate and excite an acoustic wave, and a capacitor that...
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7683521 |
Radio frequency surface acoustic wave proximity detector
A proximity sensor for determining a position of an object. The proximity sensor includes a SAW device having a load end and an input end for receiving an input pulse. A sensing section connects to...
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7679474 |
Surface acoustic wave resonator, and surface acoustic wave filter
A surface acoustic wave resonator has a piezoelectric substrate (11), an IDT (13) formed of a plurality of electrode fingers (12) disposed on piezoelectric substrate (11), and reflectors (14)...
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7667888 |
Low cost system and method that implements acousto-optic (AO) RF signal excitation
An acousto-optic modulator includes an acousto-optic bulk medium. A transducer is attached to the acousto-optic bulk medium and formed as a linear array of electrodes. A transducer driver is...
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7663290 |
Sensor
A sensor includes a substrate, a medium on which a surface acoustic wave propagates, a reference electrode, an antenna, a transducer that includes a first electrode connected to the antenna and a...
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7633206 |
Reflective and slanted array channelized sensor arrays
Reflective and slanted array channelized sensor arrays having a broadband source providing acoustic energy to a reflective or slanted array that reflects a portion of the incident signal to one or...
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7615909 |
Surface acoustic wave motor
In an energy recovery type surface acoustic wave motor, an increase in energy efficiency at the time of energy recovery and supply is achieved by adjusting phase change. A surface acoustic wave...
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7579932 |
Resonator SAW filter having a control interdigital transducer between input and output interdigital transducers
A longitudinally coupled multi-mode SAW resonator filter includes input and output interdigital transducers (IDTs) with a control IDT therebetween to control a state of the surface acoustic wave....
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7576469 |
Sensor comprising a surface wave component
The invention relates to a sensor (4) comprising a surface wave component (2) containing information relating to the sensitivity of the sensor. Said information can be consulted by means of a...
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7569971 |
Compensation of resonators for substrate and transducer asymmetry
An in-line SAW resonator employs an asymmetric adjustment of the Bragg frequencies of the left outer reflector and right outer reflector where the degree of periodicity shift and the relative...
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7554242 |
Surface acoustic wave chip, surface acoustic wave device, and manufacturing method for implementing the same
A surface acoustic wave chip formed with an inter-digital transducer entirely over a piezoelectric substrate. In the surface acoustic wave chip, the inter-digital transducer is extended to a rim of...
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7554428 |
Boundary acoustic wave device comprising Ni diffused in Au and method for manufacturing the same
A boundary acoustic wave device includes a first medium, a second medium, and an IDT electrode disposed at an interface between the first medium and the second medium, the IDT electrode having an...
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7535151 |
Single phase unidirectional surface acoustic wave transducer and improved reflectors
A unidirectional transducer for a surface acoustic wave (SAW) device. In one embodiment the device includes (1) a defined area on a piezoelectric substrate within which is located an open circuit...
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