Patent ID: 7812779

Claim:
A system for focusing sensitivity of an RFID transceiver, the system comprising in combination: an RFID transceiver antenna; said RFID transceiver antenna adapted to be located proximate to but spaced from a monitoring zone; said RFID transceiver antenna adapted to establish an RF field within the monitoring zone; shielding interposed between said antenna and the monitoring zone; an aperture formed in said shielding; said shielding formed at least partially of thin plastic anti-static film; wherein said antenna includes a body with a lower surface oriented in a substantially horizontal plane, both said body of said antenna and said shielding oriented to overlie said monitoring zone; and wherein said shielding includes at least two separate sheets oriented parallel with each other and spaced from each other by a distance at least as great as a width of said aperture, said separate sheets oriented non-horizontally.