Radio frequency antenna for an object interrogation device comprising a radio frequency antenna associated with an electronic circuit
First Claim
1. A transmission/reception radio-wave aerial for an interrogation device for electronic labels carried by objects, the transmission/reception radio-wave aerial being tuned to an F0 frequency and each electronic label including a radio-wave aerial tuned to the F0 frequency and being associated with an electronic circuit, wherein the transmission/reception radio-wave aerial is arranged to create a magnetic field which modifies the tuning frequency for the radio-wave aerials for the electronic labels in such a way to retune towards the F0 frequency of the aerial of the interrogation device.
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Accused Products
Abstract
A transmission/reception radio-wave aerial for an interrogation device for electronic labels carried by objects, the transmission/reception radio-wave aerial being tuned to an F0 frequency and each electronic label including a radio-wave aerial tuned to the F0 frequency and being associated with an electronic circuit, wherein the transmission/reception radio-wave aerial is arranged to create a magnetic field which modifies the tuning frequency for the radio-wave aerials for the electronic labels in such a way to retune towards the F0 frequency of the aerial of the interrogation device.
14 Citations
16 Claims
- 1. A transmission/reception radio-wave aerial for an interrogation device for electronic labels carried by objects, the transmission/reception radio-wave aerial being tuned to an F0 frequency and each electronic label including a radio-wave aerial tuned to the F0 frequency and being associated with an electronic circuit, wherein the transmission/reception radio-wave aerial is arranged to create a magnetic field which modifies the tuning frequency for the radio-wave aerials for the electronic labels in such a way to retune towards the F0 frequency of the aerial of the interrogation device.
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16. A transmission/reception radio-wave aerial for an interrogation device for electronic labels carried by objects comprising:
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a dielectric support;
a conductor winding having at least two terminal connections fixed to the dielectric support; and
an electronic circuit connected between the terminal connections and tuned to an F0 frequency, wherein current passing through the conductor winding creates a magnetic field which modifies tuning frequencies for radio-wave aerials for other electronic labels to retune towards the F0 frequency of the aerial of the interrogation device.
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Specification