Abstract: The invention relates to a high frequency component with a substrate constructed of a plurality of dielectric layers and, between them, electrode layers having conducting track structures, in which substrate at least one capacitive element and at least one inductive element is formed, whereby at least one arrangement of opposed conducting track 5 structures is provided, these realizing simultaneously a capacitive and an inductive element, whereby the common-mode impedance and the push-pull impedance between the opposing conducting track structures are adjusted to differ by a factor of at least 2.

Abstract: The invention relates to a circuit arrangement for an MR apparatus, having a resonant circuit, which is formed by an MR receiving coil (L1) and a capacitor (C1), and having an electronic control circuit (S) for switching the resonant circuit between two or more operating modes. The invention proposes that the electronic control circuit (S) be connected with a receiving device (L2) for wireless reception of a high-frequency electromagnetic control signal.

Abstract: Crystalline, single-phased layers of PbMg0.33 Nb0.6703 with relative dielectric constants of 1500 and more are prepared through the use of a precursor solution that comprises a macrocyclic complexing agent. This agent is added to the lead component in an organic solution. The resulting layer is part of a device which may further include semiconductor elements and resistors.

Abstract: A bulk acoustic wave resonator comprising a substrate (5), a Bragg reflector (4), a top (1) and a bottom (3) electrode and a piezoelectric layer (2) with means for suppression of the pass-band ripples in a bulk acoustic wave filter. The means for absorbing or scattering the spurious modes are a roughened rear side of the substrate (6), an absorbing layer (5) disposed on the rear side of the substrate (6) and/or an absorbing layer (5) disposed on the front side of the substrate.

Abstract: A device for dynamic impedance matching between a power amplifier and an antenna, having a circulator (210), which routes a signal received from the power amplifier (10) at a first port via a second port to the antenna (30) and diverts the signal reflected at the antenna (30) and received at the second port through a third port; and a controllable matching network (24, 240, 250); is characterized in that a directional coupler (200) diverts a proportion of the signal traveling from the power amplifier (10) to the antenna (30), from which the magnitude and phase of the signal may be derived, to a signal detector (220); and the circulator (210) routes the entire signal reflected at the antenna (30) into the signal detector (220); wherein the signal detector (220) passes the magnitude and phase of both the signal traveling to the antenna (30) and the signal reflected at the antenna (30) to a controller (230), which evaluates the information received from the signal detector (220) in order to determine the present

Abstract: A bulk wave resonator comprising: a substrate (1); a layer (3) of piezoelectric material deposited on the substrate; a first electrode (2) and a second electrode (4) which are arranged on opposite surfaces of the layer (3) of piezoelectric material, the overlapping area of the first electrode (2) and second electrode (4) defining the resonance range of the bulk wave resonator, characterized in that the overlapping area in an intersecting plane parallel to at least one of the electrodes (2, 4) has an aspect ratio in the range from 1 (b/a) 100, where a is the length and b the width of the bulk wave resonator. The invention also relates to a bulk wave filter comprising such bulk wave resonators.

Abstract: The invention relates to an electronic device provided with an electronic component which comprises an integrated circuit arrangement which has a semiconducting substrate, active components, and passive components such as capacitors with high and with low capacitance values and/or resistors. The invention further relates to a transmitter, a receiver, an electronic component, a peripheral circuit, a power supply circuit, a filter module, and an integrated circuit arrangement.

Abstract: A mobile telephone device fitted with a transmitter and a receiver each having a high-frequency component with an integrated decoupling capacitor. The high-frequency component includes a substrate with the decoupling capacitor on one surface thereof, first and second current supply terminals for the capacitor on the same surface of the substrate as the capacitor, one capacitor electrode connected to a high frequency circuit and a DC voltage source, also on the one surface of the substrate, and the other capacitor electrode connected to ground.

Abstract: The invention describes a tunable filter arrangement with at least two resonators which are coupled to one another and of which at least one is connected to a capacitor with tunable capacitance. The electrical properties of the resonator, and thus the overall filter characteristic, can be changed through a change in the capacitance of the capacitor. Furthermore, a transmitter, a receiver, a mobile telephone device, and a wireless data transmission system comprising such a filter arrangement are disclosed, as is a tunable bulk acoustic wave resonator.

Abstract: The invention relates to an electronic device provided with an electronic component which comprises an integrated circuit arrangement including a semiconducting substrate, active components, and passive components such as capacitors and resistors. The resistors comprise materials of a high resistivity and can be manufactured with resistance values which lie within a narrow tolerance range.

Abstract: A thin-film coupler with a carrier substrate (1) and two strip lines disposed thereon, of which one represents the main coupler loop (2) and one the auxiliary coupler loop (3). The use of inexpensive carrier substrate materials and a compact construction are made possible through an integration of a strip line, a coil, or an LC combination into the auxiliary coupler loop (3). The integration of these components (4) achieves a phase shift in the frequency of the signal coupled out so that a broadband coupler is obtained which exhibits an identical coupling at at least two frequencies.

Abstract: The invention describes a tunable filter arrangement with a plurality of resonators which are coupled to one another and of which there is at least one which comprises a piezoelectric component made of a ferroelectric material and to which a DC voltage source is connected. The application of a DC voltage to the resonator renders it possible to change its electrical properties and thus the overall filter characteristic. Furthermore, a transmitter, a receiver device, and a mobile telephone device with such a filter arrangement are disclosed, aswell as a tunable bulk acoustic wave resonator.

Abstract: The invention relates to a multiple-component unit in which at least two passive components have been realized one above the other. A multiple-component unit thus comprises at least one resistor and at least one capacitor, or at least two capacitors. This space-saving construction allows for a miniaturization of circuits. A further miniaturization can be achieved in that the multiple-component units are not manufactured as discrete components, but are integrated into ICs.

Abstract: The invention relates to an electronic device provided with an electronic component which comprises an integrated circuit arrangement which has a semiconducting substrate, active components, and passive components such as capacitors with high and with low capacitance values and/or resistors. The invention further relates to a transmitter, a receiver, an electronic component, a peripheral circuit, a power supply circuit, a filter module, and an integrated circuit arrangement.

Abstract: The invention relates to a passive ceramic component with a carrier substrate (1), a first and a second electrode (2, 6), and a ferroelectric dielectric (5). The electrodes (2, 6) and the dielectric (5) preferably comprise a multilayer structure with at least a first and a second layer. The capacitance value C of the capacitor can be varied through the application of a voltage to the electrodes (2, 6), owing to the field dependence of the dielectric constant ≮r of the dielectric (5).

Abstract: The invention relates to a thin film circuit with component. The thin film circuit comprises a network of capacitors, or a network of capacitors and resistors, or a network of capacitors, resistors and inductances, or a network of capacitors and inductances. Current supply contacts such as, for example, SMD end contacts or bump end contacts render it possible for the thin film circuit to be connected to further components of a circuit or, for example, to be combined with active components through the use of contact surfaces.

Abstract: The invention describes a mobile telephone device fitted with a transmitter and a receiver which may each comprise a high-frequency component with an integrated decoupling capacitor. The invention also relates to a high-frequency component.

Abstract: The invention describes a tunable filter arrangement with at least two resonators which are coupled to one another and of which at least one is connected to a capacitor with tunable capacitance. The electrical properties of the resonator, and thus the overall filter characteristic, can be changed through a change in the capacitance of the capacitor.

Abstract: The invention describes a tunable filter arrangement with a plurality of resonators which are coupled to one another and of which there is at least one which comprises a piezoelectric component made of a ferroelectric material and to which a DC voltage source is connected. The application of a DC voltage to the resonator renders it possible to change its electrical properties and thus the overall filter characteristic.