PASSIVE RF TAG WITH MULTIPLE CONDUCTIVE COILS

摘要

A passive tag embedded in a package includes multiple conductive coils. A first coil receives radio frequency (RF) energy used to power the tag. Additional coils receive and/or transmit data signals, clock signals, and carrier signals. The RF energy and other signals may be at different frequencies. An RF probe includes a first coil to emit the RF energy to power the tag. The RF probe includes additional coils corresponding to the additional coils in the tag. The RF probe may turn off the RF signal used for power during communication. The RF energy may be rectified to provide DC power to circuits in the tag, or may be used directly for adiabatic circuits. The RF probe and the package may have complementary shapes to facilitate alignment of the coils.

主权项

1. An apparatus comprising:
an integrated circuit die having a footprint, the integrated circuit die including at least one digital logic circuit and a power conditioning circuit to provide power to the at least one digital logic circuit; a first conductive coil having a plurality of turns electrically coupled to the power conditioning circuit to receive power from an electromagnetic signal at a first frequency; and a second conductive coil having a plurality of turns to receive data modulated on a carrier signal at a second frequency; wherein the first and second conductive coils are affixed to the integrated circuit die.