Patent ID: 9121960
Filing Date: 2015-09-01
Classification: G01V,H01F,H01Q

Abstract:
1. A multi-axial antenna system with co-located coils comprising: a toroidal shaped bobbin that includes a first, a second, and a third set of grooves to receive coil windings, each of the first, second, and third set of grooves comprising multiple grooves; a first coil comprising opposite sections positioned around first opposite portions of the bobbin and through a central recess of the bobbin to generate a magnetic field in substantially a first direction when current flows through the first coil, windings of the first coil being received in respective grooves of the first set of grooves of the bobbin; a second coil comprising opposite sections positioned around second opposite portions of the bobbin and through the central recess to generate a magnetic field in substantially a second direction when current flows through the second coil, the second direction being orthogonal to the first direction, windings of the second coil being received in respective grooves of the second set of grooves of the bobbin; and a third coil around the bobbin to generate a magnetic field in substantially a third direction when current flows through the third coil, the third direction being orthogonal to the first and second directions, windings of the third coil being received in respective grooves of the third set of grooves of the bobbin.