A new method on pattern correction in broadside planar frequency diverse arrays Enine ışıyan düzlemsel ayrık frekanslı dizi antenlerde örüntü düzeltmede yeni bir yöntem

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Günay M. E., KANBAZ İ., AKSOY E.

Journal of the Faculty of Engineering and Architecture of Gazi University, cilt.39, sa.4, ss.2253-2262, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39 Sayı: 4
  • Basım Tarihi: 2024
  • Doi Numarası: 10.17341/gazimmfd.1258419
  • Dergi Adı: Journal of the Faculty of Engineering and Architecture of Gazi University
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Art Source, Compendex, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.2253-2262
  • Anahtar Kelimeler: Broadside radiation characteristic, Conformal FDA, Frequency increment, Gain compensation, Pattern correction method
  • Gazi Üniversitesi Adresli: Evet

Özet

In this study, a new approach is suggested about pattern correction due to the distortions by conformal situations in planar frequency diverse arrays (FDA). First, the differences of FDA systems from other conventional antenna array systems are evaluated and the pattern correction methods in the literature are discussed. Then, the technique of updating the inter-element frequency increment, which is a parameter of the array factor of the FDA system, is proposed in order to preserve the broadside radiation characteristic of the system and to compensate for the distortions in case the spatial coordinates change with external factors. Normally, the frequency increment between the array elements is constant and it must be much less than the central frequency of the system. Finally, the usability of the suggested technic is demonstrated with numeric examples.