Booster antenna structure for a chip card
In various embodiments, a booster antenna structure for a chip card is provided, wherein the booster antenna structure may include a booster antenna; and an additional electrically conductive structure connected to the booster antenna.
1. A contactless chip card module arrangement, comprising:
a booster antenna structure for a chip card, wherein the booster antenna structure comprises:
a booster antenna; and
an additional electrically conductive meander structure connected to the booster antenna;
a contactless chip card module which comprises:
a chip; and
a coil which is coupled electrically to the chip;
wherein the booster antenna structure is coupled inductively to the coil of the contactless chip card module by means of at least one inductive coupling area of the booster antenna; and
wherein the booster antenna structure is power-matched to the contactless chip card module; and
wherein the match is adjustable by means of an ohmic impedance of the additional electrically conductive meander structure.
2. The contactless chip card module arrangement as claimed in claim 1 ,
wherein the at least one inductive coupling area of the booster antenna has a structure enclosing the coil of the contactless chip card module.
3. The contactless chip card module arrangement as claimed in claim 2 ,
wherein the enclosing structure has at least two turns which enclose the coil of the contactless chip card module.
4. The contactless chip card module arrangement as claimed in claim 1 ,
wherein the at least one inductive coupling area of the booster antenna is arranged in a corner area of the booster antenna.
5. The contactless chip card module arrangement as claimed in claim 1 ,
wherein the at least one inductive coupling area of the booster antenna is located within an area which is bounded by conductor tracks forming the booster antenna.
6. The contactless chip card module arrangement as claimed in claim 1 ,
wherein the at least one inductive coupling area of the booster antenna is located outside an area which is bounded by conductor tracks forming the booster antenna.
7. The contactless chip card module arrangement as claimed in claim 1 ,
wherein the contactless chip card module also has chip card contacts which are configured for providing a contact-based chip card interface.
8. The contactless chip card module arrangement as claimed in claim 1 ,
wherein the contactless chip card module arrangement is configured as a dual interface chip card module arrangement.
9. A contactless chip card module arrangement, comprising:
a booster antenna structure for a chip card, wherein the booster antenna structure comprises:
a booster antenna; and
an additional electrically conductive meander structure connected to the booster antenna;
a contactless chip card module which comprises:
a chip; and
a coil which is coupled electrically to the chip;
wherein the booster antenna structure is coupled inductively to the coil of the contactless chip card module;
wherein the electrically conductive meander structure external to the booster antenna has an ohmic impedance, the value of which results from an operating frequency of the chip, the inductance of the booster antenna and the quality of the booster antenna;
wherein the booster antenna structure is power-matched to the contactless chip card module; and
wherein the match is adjustable by means of the ohmic impedance of the electrically conductive meander structure.
10. The contactless chip card module arrangement as claimed in claim 9 ,
wherein the contactless chip card module also has chip card contacts which are configured for providing a contact-based chip card interface.
11. The contactless chip card module arrangement as claimed in claim 9 ,
wherein the contactless chip card module arrangement is configured as a dual interface chip card module arrangement.