Radio frequency identification (RFID) 2 Radio-frequency identification readers Bandwidth 1 Bar codes 1 CST microwave studio 1 Conventional methods 1 Directional patterns (antenna) 1 Hardware and software 1 Hardware components 1 Internet of Things (IOT) 1 Internet of thing (IOT) 1 Internet of things 1 Micro-strip patch antennas 1 Microstrip antennas 1 Microwave antennas 1 Mobile antennas 1 Object detection 1 Passive RFID tags 1 RFID reader antennas 1 Real time tracking 1 Scanning 1 Semiconductor materials 1 Slot antennas 1 Slotted microstrip patches 1 Ultra-high frequency 1 Wide band frequencies 1 World-wide operations 1