A radio frequency identification (RFID) system includes an RFID device, and a conductive material that cooperates with the RFID device to enhance performance of the RFID device. The RFID device and the conductive material may be within a distance of about one-quarter of a wavelength of energy most preferentially received by the RFID device. The RFID device may be mounted at an angle to the conductive material. Alternatively, or in addition, the RFID device may be partially overlapped by the conductive material. The RFID device may include a conductive antenna structure having an aperture therein.