Tapped inductor voltage controlled oscillator
AssigneeFuturewei Technologies, Inc.
InventorsMichael L. Bushman, Charles J. Duey, James W. Caldwell
Life of this patent
Estimating the term…
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
An oscillator circuit comprising:
- a resonator having a capacitive element and an inductive element coupled to the capacitive element, the inductive element having a tapped inductor having four terminals, namely, first, second, third and fourth terminals;
- and
- an amplifier having an input and an output, wherein two of the four terminals are coupled to the input of the amplifier, and another two of the four terminals are coupled to the output of the amplifier;
- wherein the tapped inductor having a plurality of conductive segments, and the input of the amplifier coupled to a first conductive segment forming a first impedance and the output of the amplifier coupled to a second conductive segment forming a second impedance, and the amplifier has an input voltage larger than an output voltage determined by a voltage divider formed by the first and second impedances.
A non-transitory computer-readable medium for use with a computer having software for creating integrated circuits, the computer-readable medium having stored thereon one or more computer-readable data structures having photomask data for making an oscillator circuit, and the oscillator circuit comprising:
- a resonator having a capacitive element and an inductive element, the inductive element having a tapped inductor having four terminals, namely, first, second, third and fourth terminals;
- and
- an amplifier having an input and an output, wherein two of the four terminals are coupled to the input of the amplifier, and another two of the four terminals are coupled to the output of the amplifier;
- wherein the tapped inductor having a plurality of conductive segments, and the input of the amplifier coupled to a first conductive segment forming a first impedance and the output of the amplifier coupled to a second conductive segment forming a second impedance, and the amplifier has an input voltage larger than an output voltage determined by a voltage divider formed by the first and second impedances.
An oscillator circuit comprising:
- a resonator having a capacitive element and an inductive element, the inductive element comprising a tapped inductor having at least three terminals;
- wherein a first terminal is configured to be coupled to an input of an amplifier, and a second terminal is configured to be coupled to the output of the amplifier;
- the tapped inductor having a plurality of conductive segments;
- and
- the input of the amplifier coupled to a first conductive segment forming a first impedance and the output of the amplifier coupled to a second conductive segment forming a second impedance, and the amplifier is configured to have a voltage divider formed by the first and second conductive elements to produce an input voltage that is larger than an output voltage.
Dependencies are inferred from the claim text.