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

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

2009-04-30

2011-11-22

Le, Nhan (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With wave collector

C455S333000, C455S334000, C340S010100

Reexamination Certificate

active

08064864

ABSTRACT:
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.

REFERENCES:
patent: 6717396 (2004-04-01), Viola
patent: 7164344 (2007-01-01), Deguchi et al.
patent: 2004/0134985 (2004-07-01), Deguchi
patent: 2005/0242916 (2005-11-01), So
patent: 2006/0238301 (2006-10-01), Wu et al.
patent: 2008/0012680 (2008-01-01), Muelleman
patent: 10-2005-0013022 (2005-02-01), None

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