Programmable inductor
AssigneeST-Ericsson SA
InventorBassem Fahs
Life of this patent
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Abstract
The present invention provides a programmable integrated inductor having a compact design, having a dual turn and a parallel programmable impedance. In particular, the impedance value of the programmable changes, like a variable, programmable, as its range may be set to an unlimited number of values. The invention, thus, provides a wider range of programmable values without compromising space, at a constant equivalent given inductor area.
Claims16
A programmable integrated inductor comprising:
- a dual-turn inductor comprising at least one inner turn and at least one outer turn, wherein a current generated by the at least one inner and a current generated by the at least one outer turn have a same direction;
- and
- at least one parallel programmable impedance located at an opposite end of the programmable integrated inductor from an input thereof configured to change an impedance value and an inductance value of the inductor, wherein the impedance value is a variable based as a function of a digital or an analog signal and the inductance value is programmable so that its range may be set to an unlimited number of values, and wherein the programmable impedance is coupled between a first inner turn to outer turn transition and a second inner turn to outer turn transition.
A method of manufacturing a programmable integrated inductor, comprising:
- forming a dual-turn inductor comprising at least one inner turn and at least one outer turn, wherein a current generated by the at least one inner and a current generated by the at least one outer turn have a same direction;
- and
- forming at least one parallel programmable impedance located at an opposite end of the programmable integrated inductor from an input thereof configured to change an impedance value and an inductance value of the inductor, and wherein the impedance value is a variable based as a function of a digital or an analog signal and the inductance value is programmable so that its range may be set to an unlimited number of values, and wherein the programmable impedance is coupled between a first inner turn to outer turn transition and a second inner turn to outer turn transition.
A wireless communication device comprising a programmable integrated inductor comprising:
- a dual-turn inductor comprising at least one inner turn and at least one outer turn, wherein a current generated by the at least one inner and a current generated by the at least one outer turn have a same direction;
- and
- at least one parallel programmable impedance configured to change an impedance value and an inductance value of the inductor, wherein the impedance value is a variable based as a function of a digital or an analog signal and the inductance value is programmable so that its range may be set to an unlimited number of values, and wherein the programmable impedance is located at an opposite end of the programmable integrated inductor from an input thereof, and wherein the programmable impedance is coupled between a first inner turn to outer turn transition and a second inner turn to outer turn transition.
Dependencies are inferred from the claim text.