Back to results
US 7,095,307 B1Granted
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.
Claims7
A device, comprising:
- a first circuit;
- a second circuit;
- and
- an impedance matching circuit coupled between the first circuit and the second circuit, wherein the impedance matching circuit includes:
- a first in-silicon inductor spiraling in a first direction, wherein the first in-silicon inductor has a plurality of turns, and
- a second in-silicon inductor spiraling in a second direction opposite the first direction, wherein the second in-silicon inductor has a plurality of turns,
- wherein the first in-silicon inductor is interleaved with the second in-silicon inductor,
- wherein an input of the first in-silicon inductor and an input of the second in-silicon inductor receives a differential signal and an output of the first in-silicon inductor and an output of the second in-silicon inductor produces a differential signal, and
- wherein a first current in the first in-silicon inductor and a second current in the second in-silicon inductor flow in a same direction in corresponding turns of the first in-silicon inductor and the second in-silicon inductor.
6 more elements
Dependencies are inferred from the claim text.