High-gain dual-polarised planar slot array for WLAN applications

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High-gain dual-polarised planar slot array for WLAN applications

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A high-gain dual-polarised planar etched slot array for use in wireless local area networks (WLAN) is presented. Two sets of four collinear slots are used as radiators for each polarisation. Each set of four collinear slots is constructed as a centre-fed long slotline, with etched crossovers to split the slotline into four resonant and in-phase half-wavelength slots. A reflector etched on a separate substrate spaced a quarter-wavelength away from the slot array ensures unidirectional radiation. The final antenna achieved a gain of 14.5 dBi, a return loss better than 10 dB, and port isolation in excess of 30 dB over the 2.4–2.484 GHz WLAN frequency band.

Inspec keywords: slot antenna arrays; planar antenna arrays; wireless LAN; polarisation; antenna radiation patterns

Other keywords: reflector etched; unidirectional radiation; bandwidth 2.4 GHz to 2.484 GHz; planar slot antenna array; high gain dual polarisation; collinear slots; wireless local area networks; WLAN

Subjects: Antenna arrays; Radio links and equipment

References

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      • Zeland Software, IE3D User's Manual, Release 12.1 (2007).
    2. 2)
      • Chuang, H.-R., Kuo, L.-C., Lin, C.-C., Chen, W.-T.: `A 2.4 GHz polarization-diversity planar printed antenna for WLAN and wireless communication systems', Dig. Int. Symp. of IEEE Antennas and Propagation Society, 2002, San Antonio, TX, USA, 4, p. 76–79.
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      • J.M. Steyn , J.W. Odendaal , J. Joubert . Dual-band dual-polarized array for WLAN applications. Progr. Electromagn. Res. C , 151 - 161
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