This computer has no internal power supply, but when a specially designed reader sends out a radio signal, a tiny antenna draws power from the wave and uses it to wake the computer up.

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The match has to be such that as much power is transferred from the transmitter to the antenna as possible.

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That antenna also was also designed to pull power regardless of its orientation, making it ideal for applications inside always-moving human bodies.

ENGADGET: Stanford researchers make heart implant powered by radio waves, put batteries out of a job

Gogo also recently announced that it will partner with AeroSat to deliver the satellite antenna, radome, antenna control and modem unit and high power transceiver to Gogo.

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WiCC cards double as NFC antennae, enabling them to seamlessly replace the existing NFC antenna with a card that delivers both NFC and wireless power.

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That allowed a 10x increase in power delivery -- up to 50 microwatts to a millimeter radius antenna coil -- to an implant five centimeters below the skin.

ENGADGET: Stanford researchers make heart implant powered by radio waves, put batteries out of a job

Electrical engineers at Stanford built a cardiac device that uses a combination of inductive and radiative transmission of power, at about 1.7 billion cycles per second, to its coiled receiving antenna.

ENGADGET: Stanford researchers make heart implant powered by radio waves, put batteries out of a job