Fully differential, high Q, on-chip, impedance matching section
AssigneeBroadcom Corporation
InventorsCarol Barrett, Tom McKay, Subhas Bothra
Life of this patent
Estimating the term…
Abstract
An inductor circuit is disclosed. The inductor circuit includes a first in-silicon inductor and a second in-silicon inductor each having multiple turns. A portion of the multiple turns of the second in-silicon inductor is formed between turns of the first in-silicon inductor. The first and second in-silicon inductors are configured such that a differential current flowing through the first in-silicon inductor and the second in-silicon inductor flows in a same direction in corresponding turns of inductors.
Claims26
A radio frequency integrated circuit having a substrate, comprising:
- a first inductor integrated in the substrate, the first inductor having a plurality of segments,
- a second inductor integrated in the substrate, the second inductor having a plurality of segments,
- wherein segments in the plurality of first inductor segments are alternately disposed with segments in the plurality of second inductor segments such that a first inductor segment is adjacent to a second inductor segment,
- wherein currents in each of the first inductor segments and second inductor segments flow in the same direction, and
- wherein an input of the first inductor receives a first component of a differential input signal, an input of the second inductor receives a second component of the differential input signal, an output of the first inductor produces a first component of a differential output signal, and an output of the second inductor produces a second component of the differential output signal.
A radio frequency integrated circuit, comprising:
- a first inductor partially formed in a first layer of the radio frequency integrated circuit;
- a second inductor partially formed in the first layer of the radio frequency integrated circuit, wherein the first inductor is interleaved with the second inductor such that a first current in the first inductor flows in the same direction as a second current in the second inductor, and
- wherein an input of the first inductor receives a first component of a differential input signal and an input of the second inductor receives a second component of the differential input signal and an output of the first inductor produces a first component of a differential output signal and an output of the second inductor produces a second component of the differential output signal.
A device, comprising:
- a plurality of inductors integrated in a radio frequency integrated circuit, each inductor having a plurality of segments,
- wherein segments in each plurality of inductor segments from among the plurality of inductors are alternately disposed with segments in the plurality of inductor segments of each of the other inductors from among the plurality of inductors, such that each segment of one inductor from among the plurality of inductors is adjacent to a segment of another inductor from among the plurality of inductors,
- wherein currents in each of the segments of each inductor from among the plurality of inductors flow in the same direction, and
- wherein an input of one inductor from among the plurality of inductors receives a first component of a differential input signal, an input of another inductor from among the plurality of inductors receives a second component of the differential input signal, an output of the one inductor produces a first component of a differential output signal, and an output of the other inductor produces a second component of the different output signal.
Dependencies are inferred from the claim text.