MAGNETIC COUPLING AND CANCELLATION ARRANGEMENT

摘要

An inductor arrangement comprises a first inductor formed on a substrate, a second inductor formed on the substrate, a first loop formed on the substrate adjacent to the first inductor and a phasing network connected to the first loop which is arranged to receive an input signal representative of a flow of magnetic flux through the second inductor and to apply a first current to the first loop for generating a flow of magnetic flux for reducing magnetic coupling between the second inductor and the first inductor. A second loop can be formed on the substrate adjacent to the second inductor which is arranged to generate a second current in response to a flow of magnetic flux through the second loop, with the second current being the signal representative of a flow of magnetic flux through the second inductor.

主权项

1. A method of manufacturing an inductor arrangement on a substrate comprising:
forming a first inductor on the substrate; forming a second inductor at a location on the substrate where parasitic magnetic coupling will occur between the second inductor and the first inductor; and forming a cancellation circuit comprising:
forming a first loop on the substrate adjacent to the first inductor; andforming a phasing network connected to the first loop to receive an input signal representative of a flow of magnetic flux through the second inductor and to apply a first current to the first loop to generate a flow of magnetic flux to reduce or cancel the parasitic magnetic coupling between the second inductor and the first inductor.