TUNABLE CIRCUIT INCLUDING INTEGRATED FILTER CIRCUIT COUPLED TO VARIABLE CAPACITANCE, AND RELATED INTEGRATED CIRCUIT (IC) PACKAGES AND FABRICATION METHODS

An exemplary tunable circuit includes an inductor coupled to a node and a first capacitor coupled to the node. The tunable circuit also includes a variable capacitor coupled to the node, such that a total capacitance of the tunable circuit depends on a fixed capacitance of the first capacitor and a...

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Bibliographische Detailangaben
Hauptverfasser:	BRUNOU, Ville Herman, YUN, Changhan Hobie, THADESAR, Paragkumar Ajaybhai, CHENG, Wei, PARK, Nosun, LEHTISALO, Ville, LAURILA, Hannu, KIM, Daniel Daeik
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AMPLIFIERS BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS SELECTING RESONANT CIRCUITS SEMICONDUCTOR DEVICES TUNING RESONANT CIRCUITS
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Beschreibung
Zusammenfassung:	An exemplary tunable circuit includes an inductor coupled to a node and a first capacitor coupled to the node. The tunable circuit also includes a variable capacitor coupled to the node, such that a total capacitance of the tunable circuit depends on a fixed capacitance of the first capacitor and a variable capacitance of the variable capacitor. In an example, the inductor and the first capacitor are both included in a passive device and the variable capacitor is in a semiconductor device. The variable capacitor allows the total capacitance to be modified for the purpose of, for example, calibrating the capacitance to account for manufacturing variations, and/or adjusting to a frequency range of operation used by wireless devices in a region of the world. The first capacitor may be a higher quality capacitor providing a larger portion of the total capacitance than the variable capacitor.