High quality factor inductive and capacitive circuit structure

摘要

A circuit includes a first finger capacitor having a first bus line coupled to a first plurality of finger elements and a second bus line coupled to a second plurality of finger elements. The first bus line is parallel to the second bus line. The circuit further includes an inductor having a first leg oriented perpendicular to the first bus line and the second bus line. The first leg of the inductor is coupled to a center of the first bus line.

主权项

1. A circuit, comprising:
a first finger capacitor comprising a first bus line coupled to a first plurality of finger elements and a second bus line coupled to a second plurality of finger elements; wherein the first bus line is parallel to the second bus line; an inductor comprising a first leg oriented perpendicular to the first bus line and the second bus line; wherein the first leg is implemented in a conductive layer above the first finger capacitor; and a first via structure coupled between the first leg and the first bus line; wherein the first leg of the inductor bisects the first finger capacitor and is coupled to a center of the first bus line by the first via structure; and wherein the first via structure is disposed symmetrically about a line at the center of the first bus line that is perpendicular to the first bus line.