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Graphene-based patch antenna array on photonic crystal substrate at terahertz frequency band

Author

Listed:
  • Chandan Kumar
  • Sanjeev Kumar Raghuwanshi
  • Vikram Kumar

Abstract

In this paper, initially a photonic crystal is proposed with a periodic air gap and its performance is investigated at terahertz frequencies by varying the radius of the air gap. Then a microstrip array antenna on the 2-D photonic crystal using graphene sheet as patch material is designed and its electromagnetic characteristics are analysed and compared with those of the existing non-air gap antenna. The suggested antenna also operates in the multi-frequency terahertz range. Using a photonic band gap (PBG), crystal substrate causes the return loss to rise from −29 to −44 dB. Additionally, the antenna array's bandwidth was increased from 40 to 110 GHz. By using PBG, the gain of the suggested antenna is increased by up to 13 dB, as opposed to 4.81 dB for a substrate that does not use PBG.

Suggested Citation

  • Chandan Kumar & Sanjeev Kumar Raghuwanshi & Vikram Kumar, 2024. "Graphene-based patch antenna array on photonic crystal substrate at terahertz frequency band," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 38(2), pages 250-263, January.
    • Handle: RePEc:taf:tewaxx:v:38:y:2024:i:2:p:250-263
    DOI: 10.1080/09205071.2023.2297701
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