Patent ID: 9747479
Date: 2017-08-29
CPC Classifications: G06K,H01Q,H04B

Claim:
1. A smart passive RFID reader comprising: a means for powering said smart passive RFID reader; said means for powering selected from the group consisting of an AC power input, at least one DC voltage converter, at least one DC-DC converter, at least one uninterruptible power supply (UPS) controller, and at least one battery; an RFID reader configured to send and receive signals from passive RFID tags; a plurality of antennas connected to said RFID reader; said antennas each having a primary antenna plane; said antennas each having a pivoting axis proximate said antenna and substantially parallel to said antenna plane; at least two of said antennas being adjacent, with said pivoting axes being parallel; said adjacent antennas having orthogonal polarization with respect to one another; said adjacent antennas each having a beam radiation pattern; and whereby rotating said antennas about said pivoting axes causes a change in the overlap of said beam radiation patterns and thereby provides a means for adaptive beamforming in order to improve tag reading.