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7427819 Film-bulk acoustic wave resonator with motion plate and method  
An apparatus and method for measuring a target environmental variable (TEV) that employs a film-bulk acoustic resonator with motion plate. The film-bulk acoustic resonator (FBAR) includes an...
7425787 Acoustic galvanic isolator incorporating single insulated decoupled stacked bulk acoustic resonator with acoustically-resonant electrical insulator  
Embodiments of the acoustic galvanic isolator comprise a carrier signal source, a modulator connected to receive an information signal and the carrier signal, a demodulator, and an...
7424772 Stacked bulk acoustic resonator band-pass filter with controllable pass bandwidth  
The band-pass filter has a stacked pair of film bulk acoustic resonators (FBARs) and an acoustic decoupler between the FBARs. Each of the FBARs has opposed planar electrodes and a layer of...
7423503 Acoustic galvanic isolator incorporating film acoustically-coupled transformer  
Embodiments of the acoustic galvanic isolator comprise a carrier signal source, a modulator connected to receive an information signal and the carrier signal, a demodulator, and, connected between...
7408428 Temperature-compensated film bulk acoustic resonator (FBAR) devices  
The temperature-compensated film bulk acoustic resonator (FBAR) device comprises an FBAR stack. The FBAR stack comprises an FBAR and a temperature-compensating element. The FBAR is characterized by...
7400217 Decoupled stacked bulk acoustic resonator band-pass filter with controllable pass bandwith  
The band-pass filter has an upper film bulk acoustic resonator (FBAR), an upper FBAR stacked on the lower FBAR, and, between the FBARs, an acoustic decoupler comprising a layer of acoustic...
7391286 Impedance matching and parasitic capacitor resonance of FBAR resonators and coupled filters  
A film acoustically-coupled transformer (FACT) has a first and a second stacked bulk acoustic resonator (SBAR 1 , SBAR 2 ). Each SBAR has a stacked pair of film bulk acoustic resonators (FBARs)...
7391285 Film acoustically-coupled transformer  
One embodiment of the film acoustically-coupled transformer (FACT) includes a decoupled stacked bulk acoustic resonator (DSBAR) having a lower film bulk acoustic resonator (FBAR) an upper FBAR...
7388455 Film acoustically-coupled transformer with increased common mode rejection  
The film acoustically-coupled transformer (FACT) has a first and second decoupled stacked bulk acoustic resonators (DSBARs). Each DSBAR has a lower film bulk acoustic resonator (FBAR), an upper...
7388454 Acoustic resonator performance enhancement using alternating frame structure  
Disclosed is an acoustic resonator that includes a substrate, a first electrode, a layer of piezoelectric material, a second electrode, and an alternating frame region. The first electrode is...
7369013 Acoustic resonator performance enhancement using filled recessed region  
An acoustic resonator that includes a substrate, a first electrode, a layer of piezoelectric material, a second electrode, and a fill region. The first electrode is adjacent the substrate, and the...
7367095 Method of making an acoustically coupled transformer  
Embodiments of an acoustically-coupled transformer have a first stacked bulk acoustic resonator (SBAR) and a second SBAR. Each of the SBARs has a lower film bulk acoustic resonator (FBAR) and an...
7362198 Pass bandwidth control in decoupled stacked bulk acoustic resonator devices  
The decoupled stacked bulk acoustic resonator (DSBAR) device has a lower film bulk acoustic resonator (FBAR), an upper FBAR stacked on the lower FBAR, and an acoustic decoupler between the FBARs....
7358831 Film bulk acoustic resonator (FBAR) devices with simplified packaging  
The encapsulated film bulk acoustic resonator (FBAR) device comprises a substrate, an FBAR stack over the substrate, an element for acoustically isolating the FBAR stack from the substrate,...
7332985 Cavity-less film bulk acoustic resonator (FBAR) devices  
The film bulk acoustic resonator (FBAR) device comprises a substrate, an acoustic Bragg reflector over the substrate, a piezoelectric element over the acoustic Bragg reflector, and a remote-side...
7242270 Decoupled stacked bulk acoustic resonator-based band-pass filter  
The band-pass filter has first terminals, second terminals, a first decoupled stacked bulk acoustic resonator (DSBAR), a second DSBAR, and an electrical circuit connecting the first DSBAR and the...
6975183 BAW resonator having piezoelectric layers oriented in opposed directions  
A BAW resonator includes a first piezoelectric layer made of a material oriented toward a first direction, and a second piezoelectric layer made of a material oriented toward a second direction...
6936954 Bulk resonator  
A resonator having temperature and electronic compensation. The resonator has several layers on a substrate having opposite thermal coefficients of the sound velocity for temperature compensation....
6888424 Piezoelectric resonator, filter, and electronic communication device  
A piezoelectric resonator includes a substrate, a vibration unit disposed on the substrate and having a structure in which at least one pair of an upper electrode and a lower electrode opposed to...
6670866 Bulk acoustic wave resonator with two piezoelectric layers as balun in filters and duplexers  
A bulk acoustic wave device having two resonators in a stacked-up configuration separated by a dielectric layer. The device can be coupled to a lattice filter or a ladder filter to form a passband...
Matches 1 - 20 out of 20