Transponder equipped with a spiral antenna
AssigneeThe Swatch Group Research and Development Ltd
InventorsZoran Randjelovic, Jérôme Maspoli
Life of this patent
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Abstract
A transponder (1) including an electronic system (3) for managing the sending and receiving of data and a spiral antenna (2), the spiral antenna (2) including a wound strip forming a plurality of coils (11), the electronic system (3) being connected to the spiral antenna (2) by two connection points (6) arranged on the strip. The coils (11) included between the two connection points (6) form a first set of coils (4), the spiral antenna (2) including a second set of coils (5) extending outside the connection points (6). Also, an electronic device, particularly a timepiece including such a transponder (1).
Claims17
A transponder, comprising:
- an electronic system for managing the sending and receiving of data;
- and
- a spiral antenna,
- wherein the spiral antenna includes a wound strip forming a plurality of coils,
- wherein the electronic system is connected to the spiral antenna by only two connection points arranged on the strip, and
- wherein coils comprised between the two connection points form a first set of coils, the spiral antenna including a second set of coils extending outside the connection points.
Dependencies are inferred from the claim text.