Patent ID: 8525647
Filing Date: 2013-09-03
Classification: G07C,H01Q

Abstract:
1. A measuring system for detecting radio-frequency tags operating at a predefined wavelength, the system comprising a reading device and an antenna, which is connected to the reading device for connecting to one or more radio-frequency identifier (RFID) tags moving in a direction towards said antenna, wherein the antenna has a microstrip configuration and a length which is equal to or longer than a multiple of said predefined wavelength of the one or more RFID tags in order to form a leaky waveguide and an elongated detection zone, said leaky waveguide having the microstrip configuration acting as both a transmission and a reception antenna and being connected to the reading device in order to produce a radio-frequency excitation signal and in order to receive from said one or more RFID tags crossing said elongated detection zone, a return signal powered by the radio-frequency excitation signal, and wherein the antenna comprises: