A Miniaturized and Polarization Insensitive FSS and CFSS for Dual Band WLAN Applications

Farooq U., Iftikhar A., Shafique M. F., Mughal M. J.

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, cilt.105, ss.124-134, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 105
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.aeue.2019.04.010
  • Dergi Adı: AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.124-134
  • Anahtar Kelimeler: Dual band, Frequency selective surface (FSS), Polarization insensitive, Shielding, Spatial filters, WLAN, FREQUENCY-SELECTIVE SURFACE, EQUIVALENT-CIRCUIT MODEL, WIRELESS NETWORKS, ABSORBER, DESIGN, BANDWIDTH
  • Hacettepe Üniversitesi Adresli: Hayır

Özet

This article reports on a dual band, polarization insensitive Frequency Selective Surface (FSS) for Wi-Fi and WLAN shielding applications. The design incorporates concentric square and circular loops loaded with log periodic directors and passion crosses, respectively. The proposed design is completely polarization insensitive. Also, the design has angular stability up-to 45 for both Transverse Electric (TE) and Transverse Magnetic (TM) polarizations. The FSS offers measured suppression of 38 dB at 2.4 GHz and 32 dB at 5.9 GHz. The detailed analysis of all parameters has been carried out. Equivalent lumped circuit model has also been proposed. The design is highly miniaturized with the unit element size of 0.1 lambda(0) only. The complementary bandpass FSS has also been investigated. The measured results are in good agreement with the simulated response. The design has excellent potential for EM field suppression and security applications. (C) 2019 Elsevier GmbH. All rights reserved.