Tapped inductor voltage controlled oscillator
AssigneeFuturewei Technologies, Inc.
InventorsMichael L. Bushman, Charles J. Duey, James W. Caldwell
Life of this patent
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Abstract
A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
Claims20
A voltage controlled oscillator comprising:
- a resonator having a capacitive element and an inductive element, the inductive element comprising a plurality of conductive segments forming a physical loop defining an interior, the inductive element tapped with an electrical connection coupled to an electrical loop disposed on the interior of the physical loop;
- and
- an amplifier having a plurality of transistors coupled between a positive supply rail and a negative supply rail, the electrical connection coupled between the plurality of transistors, a first conductive segment, of the plurality of conductive segments, coupled to gates of the plurality of transistors, and a second conductive segment, of the plurality of conductive segments, coupled to the negative supply rail.
A computer-implemented method for manufacturing a voltage controlled oscillator semiconductor device, the method comprising:
- generating a layout of a voltage controlled oscillator;
- generating a photomask of the voltage controlled oscillator based on the layout;
- and
- generating the voltage controller oscillator in semiconductor material, based on the photomask, by:
- forming a resonator having a capacitive element and an inductive element, the inductive element comprising a plurality of conductive segments forming a physical loop defining an interior, the inductive element tapped with an electrical connection coupled to an electrical loop disposed on the interior of the physical loop;
- and
- forming an amplifier having a plurality of transistors coupled between a positive supply rail and a negative supply rail, the electrical connection coupled between the plurality of transistors, a first conductive segment, of the plurality of conductive segments, coupled to gates of the plurality of transistors, and a second conductive segment, of the plurality of conductive segments, coupled to the negative supply rail.
Dependencies are inferred from the claim text.