Near field location system and method

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