A Novel Meander Line RFID Reader Antenna for UHF Near-Field Applications

This paper presents a novel RFID (radio frequency identification) near-field reader antenna based on electromagnetic coupling in the UHF (ultrahigh-frequency) band. The proposed antenna is composed of a meander open-ended micro-strip line and a loaded 50-ohm resistance to generate a fairly strong and uniform electric field distribution in the near-field region. The measurement results show that the antenna is able to detect multi tags simultaneously within a reading volume: 170 × 150 × 25 mm 3 .