Integrated phase shifter of differential signals in quadrature
AssigneeSTMicroelectronics S.r.l.
InventorsHilal Ezzeddine, Francois Dupont, Benjamin Therond
Life of this patent
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Abstract
A distributed phase shifter including: a first planar winding having its ends defining accesses in phase opposition; a second planar winding coupled with the first one and grounded by a first capacitive element; a third planar winding in a conductive level different from that receiving the first winding and electrically in series with the second winding; and a fourth planar winding, coupled with the third one in a conductive level different from that receiving the second winding, first ends of the third and fourth windings being connected by a capacitive element and their second ends being connected by another capacitive element, their first and second respective ends defining accesses in phase quadrature.
Claims9
A distributed phase shifter comprising:
- a first planar winding having its ends defining accesses in phase opposition;
- a second planar winding coupled with the first one and grounded by a first capacitive element;
- a third planar winding in a conductive level different from that receiving the first winding and electrically in series with the second winding;
- and
- a fourth planar winding, coupled with the third one in a conductive level different from that receiving the second winding, first ends of the third and fourth windings being connected by a capacitive element and their second ends being connected by another capacitive element, their first and second respective ends defining accesses in phase quadrature.
Dependencies are inferred from the claim text.