Compact and Broadband 4 x 4 SIW Butler Matrix With Phase and Magnitude Error Reduction

Karamzadeh S., RAFII V., Kartal M., Virdee B. S.

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, cilt.25, sa.12, ss.772-774, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Sayı: 12
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1109/lmwc.2015.2496785
  • Dergi Adı: IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.772-774
  • Anahtar Kelimeler: Beamforming feed network, Butler matrix, microwave component, substrate integrated waveguide, DESIGN
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

A novel two-layer 4 x 4 Butler matrix by feeding substrate integrated waveguide is designed and realized. The proposed Butler matrix has broadband operation frequency range of over 8.5 to 10.6 GHz with excellent phase and amplitude performance. The proposed design in this letter prevents the loss of amplitude and phase shifts in Butler matrix and decreases amplitude imbalance to less than 0.6 dB. This is achieved by reducing the size of Butler matrix and avoiding the use of a line length which causes a phase shift.