Antenna transponder configuration for angle measurement and data transmission
AssigneeSiemens Aktiengesellschaft
InventorManfred Glehr
Life of this patent
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Abstract
An antenna transponder configuration, in particular for power transmission and angle measurement is described. The antenna transponder configuration contains a stationary antenna device having at least two concentric coils with different mean radii, the mean magnetic flux in the interior of the coils approximately canceling itself out. At least one of the coils is in this case in the form of a meandering coil. A transponder, which is disposed such that it can rotate, has a configuration of coils that are inductively coupled to the magnetic field of the meandering coil. The transponder and the antenna device are separated from one another by an air gap.
Claims4
An antenna transponder for angle measurement and data transmission, comprising:
- a stationary antenna device having at least two concentric coils with different mean radii and each of said two concentric coils having an interior, at least one of said two concentric coils is a meandering coil and a mean flux in said interior of said two concentric coils approximately canceling itself out;
- a rotatable part disposed opposite said stationary antenna device;
- and
- a transponder disposed on said rotatable part, and said stationary antenna device and said transponder defining an air gap there-between.
Dependencies are inferred from the claim text.