Patent ID: 9590761
Date: 2017-03-07
CPC Classifications: G06K,H04K,H04Q

Claim:
1. A system comprising: a coupling circuit between a communications network and a radio frequency identification (RFID) tag associated with a passive element of a distributed antenna system, the coupling circuit being configured for allowing an RFID signal received from an RFID transmitter over the communications network to be transported to the RFID tag and for substantially preventing mobile communication signals on the communications network from being transported to the RFID tag, wherein the RFID signal and the mobile communication signals are carried on the communications network over at least one same conductor; and an attenuation circuit between the coupling circuit and the RFID tag wherein the attenuation circuit is configured for coupling the RFID tag to ground; wherein the coupling circuit comprises a physical coupling between the RFID tag and the communications network, wherein the physical coupling comprises a series resonant coupling circuit, the series resonant circuit configured with a resonant frequency for allowing the RFID signal received from the RFID transmitter over the communications network to be transported to the RFID tag and for substantially preventing the mobile communication signals on the communications network from being transported to the RFID tag.