Near field signal properties are used to determine a location by utilizing
two magnetic antennas arranged so that the null axes are perpendicular
and lie in a plane of interest, such as the horizontal plane. The two
antennas may be used as transmitting antennas or receiving antennas. The
antennas may be driven so as to produce an equivalent of an
omnidirectional pattern in the plane of interest by driving the antennas
in an orthogonal manner. The orthogonal drive may be time orthogonal or
phase orthogonal. A location is determined based on near field response
which may include propagation properties, which may include amplitude,
phase, relative amplitude, or phase, or other properties. In one
embodiment, multiple transmitters are utilized to determine the location
of a single receiver. In another embodiment, multiple receivers are
utilized to determine the location of a single transmitter. A space
efficient magnetic antenna is disclosed.