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This research work proposes a small (16 × 10 × 1.6) mm3 planner antenna for broadband (3.5–11 GHz) operation. The antenna is designed using FR-4 epoxy substrate at minimal cost with 0.02 loss tangent and dielectric constant (εr) of 4.4. The proposed geometry shows − 10 dB impedance bandwidth of 7.5 GHz with a percentage bandwidth of 103%, bandwidth dimension ratio (BDR) of 4682 and peak gain of 1dBi at 4.42 GHz. Quarter-wave transformer feeding with rectangular slit and defective ground structure (DGS) are used for achieving wideband characteristics. The proposed antenna is intended for WLAN, Wi-MAX and C-band (n79) for IoT applications. In parallel this antenna can also be used for INSAT that operate at 6.725–7.025 GHz for transmission, LTE 46 band (5.15–5.925 GHz), remote sensing and military applications.

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Design of Compact Wideband Microstrip Patch Antenna for IoT Applications in WLAN, Wi-Max and C-Band

  • 会议论文

  • 发表日期：

    2025年

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  • Rakhi Neogi,
  • Sudip Mandal,
  • Tapas Tewary,
  • Chaitali Koley

摘要

This research work proposes a small (16 × 10 × 1.6) mm3 planner antenna for broadband (3.5–11 GHz) operation. The antenna is designed using FR-4 epoxy substrate at minimal cost with 0.02 loss tangent and dielectric constant (εr) of 4.4. The proposed geometry shows − 10 dB impedance bandwidth of 7.5 GHz with a percentage bandwidth of 103%, bandwidth dimension ratio (BDR) of 4682 and peak gain of 1dBi at 4.42 GHz. Quarter-wave transformer feeding with rectangular slit and defective ground structure (DGS) are used for achieving wideband characteristics. The proposed antenna is intended for WLAN, Wi-MAX and C-band (n79) for IoT applications. In parallel this antenna can also be used for INSAT that operate at 6.725–7.025 GHz for transmission, LTE 46 band (5.15–5.925 GHz), remote sensing and military applications.