Mutual coupling compensation in receiving arrays and its implementation on software defined radios

Khan S., Sajjad H., ÖZDEMİR M. K., Arvas E.

Applied Computational Electromagnetics Society Journal, cilt.35, sa.11, ss.1433-1434, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 35 Sayı: 11
  • Basım Tarihi: 2020
  • Doi Numarası: 10.47037/2020.aces.j.351185
  • Dergi Adı: Applied Computational Electromagnetics Society Journal
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Compendex, DIALNET
  • Sayfa Sayıları: ss.1433-1434
  • Anahtar Kelimeler: Direction of Arrival, LabView, Mutual Coupling, Receiving Antenna Arrays, SDR
  • İstanbul Medipol Üniversitesi Adresli: Evet

Özet

Mutual coupling is compensated in a four element uniform linear receiving array using software defined radios. Direction of arrival (DoA) is estimated in real-time for the array with spacing d= λ/4. The decoupling matrix was measured using a VNA for only one incident angle. After compensation the error in DoA estimation was reduced to 5%. Comparing the DoA results with d = λ/2 spaced Uniform Linear Array (ULA), 1.2% error was observed. Although, the experiment was performed indoors with a low SNR, the results show a substantial improvement in the estimated DoA after compensation.