RFID using an hybrid on-chip-off-chip transformer

摘要

A radio frequency identification (RFID) system includes an RFID reader and an RFID tag. The RFID reader is coupled to transmit first electromagnetic signal via an off-chip winding section of a hybrid on-chip-off-chip transformer. The RFID tag is coupled to receive the first electromagnetic signal via an on-chip winding section of the hybrid on-chip-off-chip transformer, wherein the on-chip winding section derives a second electromagnetic signal from the first electromagnetic signal when the on-chip winding section is within a proximal coupling distance of the off-chip winding section.