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DE102018111428A1 RF multiplexer  
A radio frequency multiplexer (210, 220, 230) includes transmit and receive circuits, each including an RF filter circuit (211, 212, 221, 227, 231, ..., 234). The transmit and receive circuits are...
DE102018111013A1 SAW device for ultra-high frequencies  
There is proposed a stacked functional layer type SAW device disposed on a carrier substrate selected to provide a high acoustic velocity. The stack further includes a thin TCF compensation layer,...
DE112018000012B4 Connected bodies and acoustic wave devices  
Connected body, comprising: a support body comprising a polycrystalline ceramic material or a single crystal material; a piezoelectric single crystal substrate; and a bonding layer provided...
DE102018206893A1 Device for providing a phase shift for a phase array  
The invention relates to a device for providing a phase shift for a phase array or the like, comprising a plurality of phase shift devices, each having an input and at least two outputs, wherein...
DE102018201580B4 CIRCUIT  
Circuit arrangement (10, 10 ', 10 ", 10"') for feeding an antenna structure with the following features: a first input (10e1) for LHCP signals, a second input (10e2) for RHCP signals; four antenna...
DE102017118933B4 Duplexer, duplexer device, quadplexer and quadplexer device  
Duplexer (DPX) for carrier aggregation, comprising: an input port (IN), an output port (OUT) and a common port (CP), a transmission filter (TXF) between the input port (IN) and the common port...
DE102019205590A1 SAW COMPONENT MANUFACTURING METHOD  
A SAW device manufacturing method includes a piezoelectric ceramic substrate polishing step of polishing a first surface of the piezoelectric ceramic substrate, a substrate substrate polishing...
DE102019204755A1 ACOUSTIC WAVING DEVICE WITH MULTILAYER PIEZOELECTRIC SUBSTRATE  
Aspects of this disclosure relate to an acoustic wave device that includes high speed layers on opposite sides of a piezoelectric layer. Between the piezoelectric layer and one of the high-speed...
DE102018207825B3 Acoustic wave resonator and electronic filter circuit  
The invention relates to an acoustic wave resonator (1) comprising a base body (10) which contains or consists of a piezoelectric material and at least one electrode (2) which is arranged on the...
DE102018206291A1 EMC filters  
An EMC filter (1) comprising a plurality of filter components, comprising at least one common mode choke (10), a DC link capacitor (21), a Y capacitor (20), and an X capacitor (40), the EMC filter...
DE102019205102A1 FILTERS WITH TWO TYPES OF ACOUSTIC WAVE RESONATORS  
An acoustic wave device is disclosed. The acoustic wave device may include a transmit filter including bulk acoustic wave resonators and a series-wave acoustic resonant acoustic resonator coupled...
DE102005046445B4 Bandpass filter  
Bandpass filter with signal branches (11, 12) connected in parallel, which are connected on the input side to an input node (1) and on the output side to an output node (2), - Wherein the two...
DE112018000464T5 COMMUNICATION RECEIVER USING MULTIBAND TRANSMITTER FILTER  
Communication receivers and devices are disclosed. A communications receiver includes: a low noise amplifier; a multiband emitter filter having a first port connected to an output of the low noise...
DE112015000642B4 Device for elastic waves  
An elastic wave device (10) comprising a plurality of elastic wave resonator units formed by serially dividing an elastic wave resonator into plural stages, the elastic wave device comprising: a...
DE102019102808A1 Current-to-voltage converter, which provides a variable bandwidth and device with the same  
A current-voltage converter (250 ") is provided for converting a current signal (TXin, TXin +) to a voltage signal (TXv, TXv +). The current-to-voltage converter (250") may comprise: a...
DE102018107602A1 BAW resonator, RF filter, multiplexer and method of making a BAW resonator  
A BAW resonator with improved lateral energy confinement is provided. The resonator has a lower electrode in a lower electrode layer, an upper electrode in an upper electrode layer, and a...
DE102018107589A1 Electroacoustic grating filter and a grating filter comprising RF filter module  
An RF filter with increased bandwidth is provided. The filter is an electroacoustic grating filter having a diagonally crossed shunt element connected between a first port of a second port and a...
DE102018107489A1 An improved coupling BAW resonator, RF filter comprising a BAW resonator, and methods of fabricating a BAW resonator  
An improved BAW resonator with increased electro-acoustic coupling is provided. The resonator comprises a monocrystalline piezoelectric material between a lower electrode and an upper electrode.
DE112017005977T5 composite  
A piezoelectric monocrystalline substrate 6 is made of a material formed by LiAO3 (A represents at least one element selected from the group consisting of niobium and tantalum), a compound layer...
DE112014002935B4 filter circuit  
A filter circuit (20) connected between a battery pack circuit (10) having two or more battery cells connected in series (Bc (01), Bc (02), ...) and a voltage detection circuit (30) for supplying...
DE102018109974B3 Electroacoustic filter, multiplexer and method of making an electroacoustic filter  
An improved electro-acoustic filter with improved electrical and / or acoustic properties is provided. The filter has a first resonator in a first layer stack and a second resonator in a second...
DE102018105290A1 Layer system, manufacturing method and formed on the layer system SAW device  
A layer system, in particular for forming SAW devices thereon, is proposed, comprising a monocrystalline sapphire substrate having a first surface and a crystalline piezoelectric layer comprising...
DE102018105091A1 RF filter, RF filter component and method of making an RF filter  
An RF filter is provided which has improved filter characteristics and, in particular, a reduced change in filter characteristics. The RF filter has a transmission line filter stage electrically...
DE102018101442B4 BAW resonator with increased quality factor  
A BAW resonator includes a central region (CA), a sub-overlap region (UL) surrounding the central region, and a thickness dU having smaller than the thickness dC of the central area, and a frame...
DE102012110504B4 Electro-acoustic filter with low-pass characteristic  
Electro-acoustic filter comprising an acoustic track, - A arranged in the acoustic track first electro-acoustic transducer in a frequency range around a center frequency f1 is acoustically active,...
DE202019003551U1 Adjustable Sallen-Key-Filter  
A controllable Sallen-Key-Filter, characterized in that for controlling the cutoff frequency of the filter three N-channel junction field effect transistors (4, 5, 6) are used whose gates are...
DE102018113218B3 Wafer level package and manufacturing process  
A wafer level package includes a functional wafer having a first surface on which device structures connected to device pads are disposed. A cap wafer having an inner and outer surface is bonded...
DE102018104955A1 Sound wave devices with improved spurious mode suppression  
It is proposed to couple a shunt line to the signal line of a filter circuit and to include a resonant circuit therein. The resonant circuit serves to generate a pole in the transfer curve of the...
DE102010030454B4 Acoustic resonator structure having a bridge  
Acoustic resonator (100) comprising: a first electrode (102); a second electrode (104); a piezoelectric layer (103) disposed between the first and second electrodes (102, 104); a reflective...
DE112018000151T5 Acoustic filter device  
An acoustic filter device comprises a filter chip with filter elements which are arranged in a row signal line and in parallel branches, which are each connected to a ground terminal. A carrier...
DE102018108608B3 BAW resonator with improved power resistance and heat resistance and BAW resonator comprehensive RF filter  
A BAW resonator having improved power resistance and improved heat resistance is provided. The resonator includes a layer stack comprising a piezoelectric material between a lower electrode and an...
DE102018104154A1 Filter element, filter unit and filter assembly  
A filter element (FE1) comprising a first port (P1) connectable to an antenna, a second port (P2) and a third port (P3) will be described, wherein FIG a bandpass filter (BP) is arranged between...
DE102013202113B4 Adjustable impedance matching network  
Adjustable impedance matching network, comprising: a first port (101); a second port (102); a reference potential terminal (103); a transmission line transformer (120) having a first inductor path...
DE102019202308A1 Tunable notch filter  
A tunable notch filter is disclosed with a first acoustic resonator coupled in series with a first inductive element between a filter input node and a filter output node. A first capacitor is...
DE102019104188A1 Time-interleaved filtering in analog-to-digital converters  
Techniques for increasing a data throughput rate of a filter circuit by precharging selectable storage circuits of the filter circuit with reference data, sampling input data at an input of the...
DE102018208454A1 Acoustic resonator and zigzagged electrode filter and method of making the same  
Methods are provided for designing a BAW resonator and filter and the resulting devices. Embodiments include patterning a bottom electrode of a resonator; structuring an upper electrode of the...
DE102018202330A1 Energy harvesting architecture  
The invention relates to an energy harvesting architecture comprising an alternating electromagnetic field interceptor unit, wherein the interceptor unit is connected to the input side (P1_Q1) of...
DE102018103642A1 Electronic RF Filter  
An electronic filter includes a high pass section (110) and a low pass section (120). The high pass section includes at least one filter stage of a serially connected acoustic resonator (111) and...
DE102018103549A1 RF bandpass filter, filter component and duplexer  
An improved RF bandpass filter is provided which allows to maintain a low design cost. The filter has one or more inductance elements, one or more capacitance elements, and a first electroacoustic...
DE102018103438A1 Compensation filter and method for commissioning a compensation filter  
It is a compensation filter for the attenuation of common mode noise caused by an electrical consumer specified. The compensation filter has an operational amplifier, a capacitive element, first...
DE102018103391A1 Compensation filter and method for commissioning a compensation filter  
A compensation filter for the attenuation of common-mode noise is specified. The compensation filter has a power line, an electrical amplifier, a decoupling circuit between the power line and an...
DE112018000207T5 Acoustic wave devices and a method for their production  
(Problem) The Q value of an acoustic wave device of a type in which a substrate of a piezoelectric material is directly bonded to a support body composed of a polycrystalline ceramic is to be...
DE102012224460B4 Stable-Mounting-Volume Acoustic Wave Resonator arrangement with a bridge  
A stable attachment volume acoustic wave resonator (100) comprising: a first electrode (102); a second electrode (104) having a first surface disposed at a first height; a piezoelectric layer...
DE112017005984T5 Acoustic wave devices  
An acoustic wave device is presented which has a better TCF and can improve a resonator Q value or an impedance ratio. The acoustic wave device includes a substrate (11) containing 70 mass% or...
DE102018201694A1 Converter means  
Converter device, in particular converter device (1) for a motor vehicle (35), which comprises a switch group (5) comprising at least one switch (32) for switching over a current, between a first...
DE102018102832A1 Filter circuit with a notch filter  
A filter circuit comprises in a signal line a bandpass filter allowing to pass a useful frequency band and a notch filter connected in series with the bandpass filter for filtering out a stopband...
DE102017213543B4 Filter arrangement, voltage converter with a filter arrangement  
Filter arrangement (FA ') for reducing electromagnetic radiation from two conductors (HV +, HV-) for passing a current (I), comprising: a common mode choke (GD ') having a choke core (DK')...
DE102005013895B4 Electric filter  
Electric filter with cascaded cells (10, 20) connected in series, each having a first resonator (101, 201), a first network (111, 211) for phase rotation and a first shunt element (121, 221)...
DE102018201580A1 CIRCUIT  
A circuit arrangement for feeding an antenna structure comprises an input for LHCP signals, an input for RHCP signals and four antenna outputs. In addition, the circuit arrangement comprises a...
DE102018109383B3 Acoustic wave resonator and method for its production  
A bulk acoustic wave resonator comprises a substrate (101) and a layer stack (110) having electro-acoustic properties, comprising first and second electrodes (111, 112) between which a...

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