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Wideband ring-slot coupled patch antenna with enhanced gain

Author

Listed:
  • N.-Z. Wang
  • L. Talbi
  • Q.-S. Zeng
  • J.-D. Xu

Abstract

A wideband ring-slot coupled patch antenna is presented in this paper. A microstrip line feeding network is used for impedance matching. Additionally, in order to depress the backward radiation caused by the resonance of the ring-slot, a reflector is introduced to obtain unidirectional radiation patterns, while a dielectric cover is adopted to alleviate the deterioration in impedance caused by the reflector. A prototype is fabricated and measured. The measured results are in good agreement with those simulated, which indicates that the antenna operates well with a relative bandwidth of 55% for reflection coefficient less than −10 dB, an enhanced gain of 8–11 dBi, unidirectional radiation patterns, as well as low cross-polarization.

Suggested Citation

  • N.-Z. Wang & L. Talbi & Q.-S. Zeng & J.-D. Xu, 2013. "Wideband ring-slot coupled patch antenna with enhanced gain," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 27(5), pages 572-581, March.
    • Handle: RePEc:taf:tewaxx:v:27:y:2013:i:5:p:572-581
    DOI: 10.1080/09205071.2013.757194
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