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1 results

  • Metasurface loaded twin-port microstrip antenna with circular polarization features for UHF RFID applications

  • Anand Vardhan Bhalla, Agya Mishra
  • Journal:
    International Journal of Microwave and Wireless Technologies / Volume 16 / Issue 10 / December 2024
    Published online by Cambridge University Press:
    06 November 2024, pp. 1798-1805

  • This communication designs and investigates a twin-port microstrip antenna loaded with a metasurface (MS). The proposed MS works in two ways: (i) artificial ground plane for radiator and (ii) as an ideal absorber of normal incoming waves at the same time. A stair shaped slot is loaded on rectangular patch for creating circularly polarized wave in between 835–894 MHz. Antenna port slots oriented in a mirror manner increase isolation by 25 dB. To act as a validation tool, the suggested antenna was built and its executions in individually operating modes evaluated by statistical and experimental analysis. It is shown that combining the patch and absorber results in a well-matched antenna in between 710–980 MHz with improved gain (more than 3.0 dBi). The proposed antenna design effectively used for UHF (Ultra High Frequency)radio-frequency identification (RFID) applications, which is due to its ability to mitigate multipath reflection issues and incorrectRFID reading.