Wireless medical device navigation systems and methods

A catheter configured to be inserted into a patient, the catheter comprising:

• a flexible tubular body having a proximal end and a distal end;
• and
• a tip attached to the distal end of the flexible tubular body, the tip comprising:
• a first antenna configured to receive a first radio frequency (“RF”) signal and produce an alternating current;
• a filter configured to filter the alternating current;
• a rectifier configured to convert the filtered alternating current into a direct current;
• a frequency generator configured to produce a second RF signal;
• an amplifier configured to amplify the second RF signal;
• and
• a second antenna configured to broadcast the second RF signal,
• wherein at least the frequency generator, the amplifier, and the second antenna are energized by the direct current.

A chest plate configured to be disposed on a chest of a patient, the chest plate comprising:

• a radiating element configured to produce a first radio frequency (“RF”) signal;
• and
• a plurality of three-axis sensors, each three-axis sensor comprising three receiver coils configured to receive a second RF signal,
• wherein the radiating element is disposed in a center portion of the chest plate, and
• wherein each of the plurality of three-axis sensors is disposed proximate to an outer edge of the chest plate.