Booster antenna configurations and methods
AssigneeFéinics AmaTech Teoranta
InventorsDavid Finn, Klaus Ummenhofer
Life of this patent
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Abstract
A booster antenna (BA) for a smart card comprises a card antenna (CA) component extending around a periphery of a card body (CB), a coupler coil (CC) component at a location for an antenna module (AM), and an extension antenna (EA) component contributing to the inductance of the booster antenna (BA). At least a portion of the coupler coil (CC) component may have a sense which is opposite to a sense of at least a portion of the card antenna (CA) component. At least a portion of one of the components may be interleaved with (i) a portion of another component, or (ii) another portion of the same component. A capacitive extension (CE) may extend from at least one of the card antenna (CA), coupler coil (CC) and extension antenna (EA) components.
Claims16
Booster antenna (BA) for a smartcard comprising a card body (CB) and an antenna module (AM), the booster antenna comprising:
- a card antenna (CA) component disposed on the card body around a periphery of the card body;
- wherein the card antenna (CA) component comprises an outer winding (OW) and an inner winding (IW);
- and
- a coupler coil (CC) component disposed on the card body at a location for the antenna module;
- wherein:
- the card antenna and coupler coil components are formed from one continuous length of wire;
- and
- at least a portion of the coupler coil (CC) component has a sense which is opposite to a sense of at least a portion of the card antenna (CA) component.
Booster antenna (BA) for a smartcard comprising:
- a card antenna (CA) component disposed on a substrate;
- and
- a coupler coil (CC) component disposed on the substrate;
- wherein:
- the card antenna and coupler coil components are formed from one continuous length of wire;
- and
- at least a portion of one of the components is interleaved with (i) a portion of another component, or (ii) another portion of the same component.
Booster antenna (BA) for a smartcard comprising:
- a card antenna (CA) component disposed on a substrate;
- a coupler coil (CC) component disposed on the substrate;
- and
- a capacitive extension (CE) disposed on the substrate and extending from at least one of the card antenna (CA), and coupler coil (CC) components;
- the card antenna and coupler coil components and capacitive extension are formed from one continuous length of wire.
Dependencies are inferred from the claim text.