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8183958 |
Elastic-wave ladder filter
An elastic-wave ladder filter significantly reduces loss within a passband while also increasing the passband and attenuation. The elastic-wave ladder filter includes a series arm that connects an...
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8176617 |
Methods for making a sensitive resonating beam accelerometer
A method of making a resonating beam accelerometer (RBA). In an example process, a proof mass device and resonators are created from a quartz material. A direct bond is formed between the proof...
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8179211 |
RF-filter with improved adjacent channel suppression
The invention relates to a filter with a first partial filter (TF1), comprising a series resonator (S1) and at least two parallel resonators (P1, P2) that are arranged in respective parallel...
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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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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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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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8125300 |
Surface acoustic wave filter comprising a band-pass filter and a band-stop filter
An electric filter has a band-pass filter that includes a track with acoustically coupled electroacoustic transducers. The filter includes a band-stop filter with at least one electroacoustic...
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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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8115342 |
Vehicle power supply apparatus and vehicle window member
The vehicle power supply apparatus 100 has a power transmitting unit 110 including a power transmission side coil 111 for generating an alternating magnetic field, a positioning member 112 for...
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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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8099853 |
Method for manufacturing boundary acoustic wave device
A method for manufacturing a boundary acoustic wave device prevents formation of discontinuous portions in a dielectric film without a significant decrease in the thickness of an IDT when 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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8093960 |
Filter duplexer and communication device
A filter has a filter section that is provided with a balanced input terminal including a terminal 1 and a terminal 2 and a balanced output terminal including a terminal 3 and a terminal 4, and...
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8093961 |
Duplexer formed on piezoelectric substrate
To provide a duplexer which is small in size and excellent in separation characteristic of transmission/reception signals. An antenna port is disposed on a center of a rearward side in a...
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8084915 |
Surface acoustic wave resonator having comb electrodes with different overlapping lengths
A surface acoustic wave resonator includes a piezoelectric substrate, a first surface acoustic wave resonator having a comb electrode provided on the piezoelectric substrate, and a second surface...
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8085116 |
Elastic wave device with a dielectric layer on the comb-shaped electrodes
An elastic wave device is described which includes a piezoelectric substrate, comb-shaped electrodes having teeth electrodes that are disposed so as to face each other on the piezoelectric...
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8076800 |
Wireless non-radiative energy transfer
The electromagnetic energy transfer device includes a first resonator structure receiving energy from an external power supply. The first resonator structure has a first Q-factor. A second...
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8074341 |
Boundary acoustic wave device manufacturing method
A method for manufacturing a boundary acoustic wave device includes the steps of preparing a laminated structure in which an IDT electrode is disposed at an interface between first and second solid...
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8072293 |
Surface acoustic wave filter, antenna duplexer and method for manufacturing them
A surface acoustic wave filter comprised of a plurality of surface acoustic wave resonators having different resonance frequencies, the filter comprising a substrate made of lithium niobate, comb...
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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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8063722 |
Balance filter comprising two acoustic wave filters connected to a single ground terminal
A balance filter includes two acoustic wave filters connected between a single unbalanced terminal and two balanced terminals, and a ground terminal connected to the two acoustic wave filters via a...
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8063535 |
Nanomechanical oscillator
A mechanical oscillator has components with dimensions in a sub-micron range to produce resonance mode oscillations in a gigahertz range. A major element is coupled to a minor, sub-micron element...
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8049582 |
Transversal filter
The filter includes at least one acoustic track formed on a piezoelectric substrate. At least one SAW input transducer and at least one SAW output transducer are arranged in each track. Each track...
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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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8049577 |
Elastic wave device, duplexer using the same, and communication apparatus using the duplexer
An elastic wave device includes resonators having a piezoelectric substrate, a resonation unit formed on the piezoelectric substrate, and reflectors formed on respective sides of the resonation...
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8035460 |
Surface acoustic wave device, surface acoustic wave filter and antenna duplexer using the same, and electronic equipment using the same
A surface acoustic wave device includes a substrate including lithium niobate; a IDT being provided on an upper surface of the substrate and including a plurality of electrode fingers; and a...
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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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8031014 |
Solid state terahertz radiation frequency multiplier
A nonlinear solid-state device useful for frequency conversion of electromagnetic radiation and in particular for harmonic generation, comprising a waveguiding electromagnetically distributed...
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8031034 |
Surface acoustic wave filter and method for improved rejection
A SAW coupled resonator filter providing improved rejection outside the passband frequencies includes at least two filter tracks on a piezoelectric substrate with each track having a plurality of...
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8026780 |
Resonator filter working with surface acoustic waves
A resonator filter working with surface acoustic waves is disclosed. The transfer function of this filter features a phase rotation of at least 400° within a passband.
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8026776 |
Acoustic wave device, duplexer, communication module, and communication apparatus
An acoustic wave device includes a ladder-type filter in which resonators are connected in a ladder configuration. In the acoustic wave device, series-connected resonators are connected in a...
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8022556 |
Electrical component having a reduced substrate area
An electrical component includes a substrate, component structures on the substrate, and solder metal platings electrically connected to the component structures. The substrate is electrically and...
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8022576 |
Wireless non-radiative energy transfer
The electromagnetic energy transfer device includes a first resonator structure receiving energy from an external power supply. The first resonator structure has a first Q-factor. A second...
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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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8013692 |
Boundary acoustic wave device
A boundary acoustic wave device includes an electrode structure that is provided at the interface between a piezoelectric substrate and a dielectric layer. The electrode structure defines a ladder...
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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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8005437 |
Fully integrated micro-strip VCO
A radio transceiver device includes circuitry for radiating electromagnetic signals at a very high radio frequency both through space, as well as through wave guides that are formed within a...
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7999636 |
DMS-filter with connected resonators
A surface acoustic wave filter arrangement is described herein. The surface acoustic wave filter arrangement includes a first gate configured to operate symmetrically or asymmetrically, and a...
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7994878 |
Acoustic wave device and high-frequency filter using the same
Boundary acoustic wave devices are both compact and possess excellent temperature stability. Yet these devices have the drawback that the Q value cannot be raised, and a high cost thin-film...
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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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7986200 |
Acoustic wave filter including first and second multimode filters with different aperture lengths
An acoustic wave filter includes: a first acoustic wave filter having a first group of multimode filters connected, a first unbalanced input node and two first balanced output nodes, a first...
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7969259 |
Electronic component operated with surface acoustic waves
An apparatus includes a piezoelectric substrate having a signal line with a first electrical port and a second electrical port, and a first partial filter connected in series with a second partial...
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7965155 |
Surface acoustic wave resonator, and surface acoustic wave filter and antenna duplexer in which the surface acoustic wave resonator is used
The present invention provides a surface acoustic wave resonator capable of improving a leak of a surface acoustic wave in the transverse direction and reducing the spurious and having superior...
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7948333 |
Component operated by guided acoustic waves
A component working with guided acoustic waves includes a layer system configured to guide waves in a lateral plane. The layer system includes a piezoelectric layer, electrodes on the piezoelectric...
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7944329 |
Acoustic wave filter device with branched ground wiring sandwiching the IDT area
An acoustic wave filter device has a balance-unbalance conversion function and has an increased out-of-band attenuation. The acoustic wave filter device includes a 5-IDT-type longitudinally coupled...
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7940146 |
Boundary acoustic wave element, boundary acoustic wave device, and manufacturing methods for the same
A boundary acoustic wave element includes an IDT electrode arranged at the interface between a piezoelectric substance and a dielectric layer, a heat dissipation film is arranged on the outer side...
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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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7924118 |
Duplexer and elastic wave device
In a duplexer, a transmission elastic wave filter and a reception elastic wave filter are mounted on a laminated substrate, a coil connected between an antenna terminal and a ground potential is...
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7915972 |
Balance filter and duplexer
A balance filter includes a first filter having first multimode surface acoustic wave (SAW) filters connected in parallel, a second filter that is connected to the first filter and includes a...
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