Assembly of SIM card and RFID antenna
View Patent ↗A subscriber identity module (SIM) card includes: a printed circuit board; a circuit provided on the printed circuit board and capable of executing SIM and RFID functions; a set of circuit contacts provided on the printed circuit board, electrically connected to the circuit via conductive paths, and conforming to a SIM specification; a set of antenna contacts provided on the printed circuit board and electrically connected to the circuit via conductive paths; and a protective plate fixed to the printed circuit board and conforming to standard dimensions of the SIM card. An assembly of the SIM card and a RFID antenna is also disclosed.
1. A subscriber identity module (SIM) card comprising:
a printed circuit board, having a first surface and a second surface opposite to said first surface;
a circuit provided on said printed circuit board and capable of executing SIM and radio frequency identification (RFID) functions, said circuit provided on one of said first and second surfaces of said printed circuit board;
a set of circuit contacts provided on said printed circuit board, electrically connected to said circuit via conductive paths, and conforming to a SIM specification, said circuit contacts being provided on the other one of said first and second surfaces of said printed circuit board; and
a set of antenna contacts provided on said printed circuit board and electrically connected to said circuit via conductive paths, said antenna contacts being provided on said one of said first and second surfaces of said printed circuit board.
2. The SIM card as claimed in claim 1 , wherein said circuit is an integrated circuit that includes a subscriber identity module and a RFID module, each of said subscriber identity module and said RFID module being implemented as one of an independent chip and a function module within a chip.
3. The SIM card as claimed in claim 2 , further comprising
a capacitor connected to said antenna contacts.
4. The SIM card as claimed in claim 3 , wherein said circuit and said antenna contacts are provided on said first surface of said printed circuit board, said circuit contacts being provided on said second surface of said printed circuit board, said printed circuit board further having a plurality of contact pads provided on said first surface, each of said conductive paths connecting a respective one of said contact pads to a respective one of said circuit contacts and said antenna contacts, said subscriber identity module and said RFID module being electrically connected to corresponding ones of said contact pads.
5. The SIM card as claimed in claim 4 , further comprising a protective plate fixed to said first surface of said printed circuit board to cover said circuit while exposing said antenna contacts.
6. The SIM card as claimed in claim 5 , wherein said protective plate has dimensions conforming to standard dimensions of a SIM card.
7. The SIM card as claimed in claim 5 , wherein said protective plate has dimensions larger than those of said printed circuit board, said protective plate being configured with a protective region corresponding to said printed circuit board in dimensions and to be disposed above said printed circuit board, said protective plate being formed with a tear line surrounding said protective region.
8. The SIM card as claimed in claim 7 , wherein said protective plate includes a first plate body, a second plate body and a third plate body arranged in a stack, said tear line being formed in said first and second plate bodies to surround said protective region, said first and second plate bodies being further formed with aligned access holes for exposing said antenna contacts, said second plate body being further formed with a chip receiving space for receiving said circuit, said third plate body being formed with a board receiving hole for receiving said printed circuit board.
9. The SIM card as claimed in claim 8 , wherein said protective plate is made of a plastic material.
10. The SIM card as claimed in claim 9 , wherein the plastic material is polyethylene terephthalate.
11. The SIM card as claimed in claim 1 , comprising eight of said circuit contacts and two of said antenna contacts.
12. The SIM card as claimed in claim 11 , wherein two of said circuit contacts are adapted for electrical connection to a USB port.
13. An assembly of a subscriber identity module (SIM) card and a radio frequency identification (RFID) antenna, comprising:
a SIM card including
a printed circuit board having a first surface and a second surface opposite to said first surface,
a circuit provided on said printed circuit board and capable of executing SIM and RFID functions, said circuit being provided on one of said first and second surfaces of said printed circuit board,
a set of circuit contacts provided on said printed circuit board, electrically connected to said circuit via conductive paths, and conforming to a SIM specification, said circuit contacts being provided on the other one of said first and second surfaces of said printed circuit board, and
a set of antenna contacts provided on said printed circuit board and electrically connected to said circuit via conductive paths, said antenna contacts provided on said one of said first and second surfaces of said printed circuit board; and
a RFID antenna electrically connected to said antenna contacts on said printed circuit board.
14. The assembly as claimed in claim 13 , wherein said RFID antenna includes a flexible printed circuit board.
15. The assembly as claimed in claim 13 , further comprising solder material for fixing said RFID antenna to said antenna contacts.
16. The assembly as claimed in claim 13 , further comprising conductive paste for fixing said RFID antenna to said antenna contacts.
17. The assembly as claimed in claim 13 , wherein said circuit is an integrated circuit.
18. The assembly as claimed in claim 17 , wherein said integrated circuit includes a subscriber identity chip and a RFID chip.
19. The assembly as claimed in claim 18 , wherein said circuit and said antenna contacts are provided on said first surface of said printed circuit board, said circuit contacts being provided on said second surface of said printed circuit board, said printed circuit board further having a plurality of contact pads provided on said first surface, each of said conductive paths connecting a respective one of said contact pads to a respective one of said circuit contacts and said antenna contacts, said subscriber identity chip and said RFID chip being electrically connected to corresponding ones of said contact pads.
20. The assembly as claimed in claim 19 , further comprising a protective plate fixed to said first surface of said printed circuit board to cover said circuit while exposing said antenna contacts.
21. The assembly as claimed in claim 20 , wherein said protective plate is made of a plastic material.
22. The assembly as claimed in claim 13 , wherein said SIM card includes eight of said circuit contacts and two of said antenna contacts.