Patent ID: 7388500
Filing Date: 2008-06-17
Classification: G06K,H01Q

Abstract:
1. An enhanced mechanism for RFID reader, comprising: an antenna for receiving RFID signal transmitted from an object under test and outputting the RFID signal to the RFID reader; a metal plate device having a first metal plate and a second metal plate that are disposed on a top inner surface of an entrance of a building, wherein the first metal plate and the second metal plate form an angle ranging from 30 to 180 degrees relative to each other, and wherein the metal plate device and the object under test are respectively placed on the opposite sides of the antenna, and the metal plate device and the antenna are combined to strengthen a reception of antenna to thereby provide a high gain to the antenna; and a partially reflective surface disposed in-between the antenna and the object under test and combining the first and the second metal plates to form a resonance cavity device to improve a radiated power gain.