In this work, the design of an antenna array utilizing a sequential rotation technique for wireless local area network (WLAN) applications at 5 GHz is presented. While the existence of a sequentially rotated feeding network generates circular polarization, a frequency-selective surface (FSS) is employed to enhance the antenna’s bandwidth. Utilizing RT5870 ( \(\varepsilon _r\) = 2.33, h = 0.7874 mm, and tan \(\delta \) = 0.0012) and RO4350B ( \(\varepsilon _r\) = 3.66, h = 1.524 mm, and tan \(\delta \) = 0.0037) substrates, the finalized design achieves a compact size of 85 \(\times \) 85 \(\times \) 2.31 mm \(^3\) . The simulated results show that at – 10 dB, the bandwidth percentage is 8% (4.8–5.2 GHz), a peak gain of 9.7 dBi and an efficiency over 74% in the operating frequency band.

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Sequential Rotation Feeding Microstrip Antenna Array of 2 \(\times \) 2 for WLAN Applications

  • Ngoc-Lan Nguyen

摘要

In this work, the design of an antenna array utilizing a sequential rotation technique for wireless local area network (WLAN) applications at 5 GHz is presented. While the existence of a sequentially rotated feeding network generates circular polarization, a frequency-selective surface (FSS) is employed to enhance the antenna’s bandwidth. Utilizing RT5870 ( \(\varepsilon _r\) = 2.33, h = 0.7874 mm, and tan \(\delta \) = 0.0012) and RO4350B ( \(\varepsilon _r\) = 3.66, h = 1.524 mm, and tan \(\delta \) = 0.0037) substrates, the finalized design achieves a compact size of 85 \(\times \) 85 \(\times \) 2.31 mm \(^3\) . The simulated results show that at – 10 dB, the bandwidth percentage is 8% (4.8–5.2 GHz), a peak gain of 9.7 dBi and an efficiency over 74% in the operating frequency band.