RFID transponder, a pod and a method for manufacturing the pod
An RFID transponder ( 1 ) comprising a radiating antenna ( 2 ) and a pod ( 3 ) and a method for manufacturing a panel ( 29 ) comprising pods ( 3 ) are disclosed.
1 . An RFID transponder, comprising:
a radiating antenna and a pod, the radiating antenna having a coupling area for the pod, wherein:
the pod is situated at the coupling area, and the pod comprises a first end and a second end and a casing between the first end and the second end, at least part of the casing comprising dielectric layers one above the other,
upper arms on a surface of one of the dielectric layers, lower arms on a surface of another layer of the dielectric layers, and via holes connecting the upper and lower arms form a planar helix antenna that is configured to extend between the first end and the second end,
the planar helix antenna has a first antenna end and a second antenna end,
the first antenna end is connected to a second electrically conductive connection and the second antenna end is connected to a first electrically conductive connection,
an integrated circuit on a chip is coupled to the first electrically conductive connection and the second electrically conductive connection inside the pod,
a lead-through is configured to run between the upper arms and the lower arms on a surface of one of the dielectric layers,
at least the first electrically conductive connection is electrically connected to the second antenna end or the second electrically conductive connection is electrically connected through the lead-through to the first antenna end, and
the radiating antenna and the planar helix antenna are configured to couple without a physical contact.
2 . The RFID transponder according to claim 1 , wherein the radiating antenna and the planar helix antenna are configured to couple by inductive coupling.
3 . The RFID transponder according to claim 1 , wherein the radiating antenna is a three-dimensional helical antenna.
4 . The RFID transponder according to claim 1 , wherein the radiating antenna is a folded planar antenna.
5 . The RFID transponder according to claim 1 , wherein the radiating antenna comprises a helical coupling area.
6 . The RFID transponder according to claim 1 , wherein the pod is inside the helical coupling area.
7 . A pod for an RFID transponder, the pod comprising a first end and a second end, and a casing between the first end and the second end, at least part of the casing comprising dielectric layers one above the other, wherein:
upper arms on a surface of one of the dielectric layers, lower arms on a surface of another layer of the dielectric layers, and via holes connecting the upper and lower arms form a planar helix antenna that is configured to extend between the first end and the second end,
the planar helix antenna has a first antenna end and a second antenna end,
the first antenna end is connected to a second electrically conductive connection and the second antenna end is connected to a first electrically conductive connection,
an integrated circuit on a chip is coupled to the first electrically conductive connection and the second electrically conductive connection inside the pod,
a lead-through is configured to run on a surface of one of the dielectric layers between the upper arms and the lower arms, and
at least the first electrically conductive connection is electrically connected to the second antenna end or the second electrically conductive connection is electrically connected through the lead-through to the first antenna end.
8 . The pod according to claim 7 , wherein the first electrically conductive connection is electrically connected through a lead-through to the second antenna end.
9 . The pod according to claim 7 , wherein the second electrically conductive connection is electrically connected through a lead-through to the first antenna end.
10 . The pod according to claim 7 , wherein the first electrically conductive connection is electrically connected through a lead-through to the second antenna end and the second electrically conductive connection is electrically connected through a lead-through to the first antenna end.
11 . The pod according to claim 7 , wherein the lead-through is a printed lead.
12 . The pod according to claim 7 , wherein the pod comprises a cavity for the integrated circuit on the chip.
13 . A pod for an RFID transponder, the pod comprising an outer surface and a first end, a second end, and a casing between the first end and the second end, at least part of the casing comprising dielectric layers one above the other, wherein:
upper arms on a surface of one of the dielectric layers, lower arms on a surface of another layer of the dielectric layers, and via holes connecting the upper and lower arms form a planar helix antenna that is configured to extend between the first end and the second end,
the planar helix antenna has a first antenna end and a second antenna end,
the first antenna end is connected to a second electrically conductive connection and the second antenna end is connected to a first electrically conductive connection,
an integrated circuit on a chip on the outer surface of the pod is coupled to the first electrically conductive connection and the second electrically conductive connection,
a lead-through is configured to run between the upper arms and the lower arms on a surface of one of the dielectric layers, and
at least the first electrically conductive connection is electrically connected to the second antenna end or the second electrically conductive connection is electrically connected through the lead-through to the first antenna end.