Design and packaging of a compact circularly polarised planar antenna for 2.45‐GHz RFID mobile readers

• DOI: 10.1049/iet-map.2019.0261
• Publication Date: 2019-06-29T02:38:58Z
• Authors: Anil Kumar Gautam; Mohd. Farhan; Niraj Agrawal; Karumudi Rambabu
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology; 7. Clean energy

In this study, a novel design and packaging of miniaturised planar microstrip antenna with circular polarisation (CP) that is suitable for 2.45‐GHz radio‐frequency identification (RFID) applications proposed. The realised by truncating the corners left to right diagonal 76% miniaturisation achieved incorporating two slots in each four directions one at centre square‐shaped radiator. This type method known literature but combining CP radiation approach. radiator designed has compact size 19.6 × mm 2 an overall 30 1.6 3 , technique offers size. Finally, prototype fabricated experimentally characterised verify concept as well validate simulation results. achieves measured return loss bandwidth around 80 MHz (2.42– 2.5 GHz) axial ratio 21 (2.447–2.468 GHz). proposed good candidate RFID mobile reader it shows performance, when installed various types housing.