SYSTEM AND METHOD FOR COUPLING PROXIMITY IC CARD/MODULE TO PROXIMITY COUPLING DEVICE IN LOW MUTUAL MAGNETIC COUPLING CONDITIONS

摘要

A proximity integrated circuit card (PICC) is disclosed comprising a main loop antenna to transmit data from said PICC and a secondary loop antenna to receive RF transmission to said PICC. The main antenna and the secondary antenna arranged to yield low mutual magnetic coupling so that the RF transmission to the PICC yields bigger signal in the secondary antenna than the signal that yields in the secondary antenna from a transmission from the main antenna. According to some embodiments the secondary antenna is arranged to only partially overlap said main antenna.

主权项

1. A proximity integrated circuit card (PICC) comprising:
a main loop antenna configured to transmit an outgoing radio frequency (RF) transmission from said PICC; a secondary loop antenna configured to receive an incoming RF transmission to said PICC; said main loop antenna and said secondary loop antenna arranged to yield a low mutual magnetic coupling such that a first signal yielded in said secondary loop antenna from said RF incoming transmission to said PICC is larger than a second signal yielded in said secondary loop antenna from said outgoing RF transmission from said main loop antenna.