Nearly isotropic dipole antenna system

A system for locating a patient-swallowed pill transmitter, the system comprising:

• a swallowable-pill transmitter comprising:
• a flexible circuit board;
• a cube ferrite core;
• a first face plate comprising a first transmitting element arranged in a first coil on a first surface of the first face plate, the first transmitting element electrically coupled with the flexible circuit board, said first transmitting element configured to transmit a first signal in a first axis substantially perpendicular to a longitudinal axis of the pill transmitter;
• a second face plate comprising a second transmitting element arranged in a second coil on a second surface of the second face plate, the second transmitting element electrically coupled with the flexible circuit board, said second transmitting element configured to transmit a second signal in a second axis substantially perpendicular to the longitudinal axis of the pill transmitter and substantially perpendicular to the first axis;
• a third face plate comprising a third transmitting element arranged in a third coil on a third surface of the third face plate, the third transmitting element electrically coupled to the flexible circuit board, said third transmitting element configured to transmit a third signal in a third axis substantially parallel to the longitudinal axis of the pill transmitter,
• wherein the third face plate is located on a first end of the flexible circuit board, and
• wherein the first face plate is configured to wrap on a first side of the cube ferrite core, the second face plate is configured to wrap on to a second side of the cube ferrite core, and the face plate is configured to wrap on to a third side of the cube ferrite core;
• and a battery positioned on a second end of the flexible circuit board,
• wherein the second end is opposite the first end of the flexible circuit board,
• wherein the battery is separated by a distance from the third face plate spanning the longitudinal axis of the pill transmitter, and said third transmitting element is arranged farther away from the battery compared to the first transmitting element and the second transmitting element to increase an angle of field leaving the swallowable-pill transmitter, and
• wherein the battery is configured to be positioned on the flexible circuit board such that the battery does not intersect with the first axis and the second axis.