Beam steering antenna design for low altitude radar systems

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Atıf İçin Kopyala

Saka B., AFACAN E., Yazgan E.

JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, cilt.11, sa.2, ss.215-224, 1997 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 11 Sayı: 2
• Basım Tarihi: 1997
• Doi Numarası: 10.1163/156939397x00170
• Dergi Adı: JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.215-224
• Gazi Üniversitesi Adresli: Hayır

Özet

A beam steering offset parabolic antenna with array feed is proposed for low altitude radar systems in order to minimize the undesired effect of irregular terrain obstacles between the radar and the target. This study provides information for the low altitude target located behind an obstacle. Focal region fields of the offset parabolic reflector are calculated in order to determine the array element location. Main beam of the reflector antenna with array feed is steered in order to compensate the low level field strength due to irregular terrain effects by adjusting excitation conditions of the array elements. The excitation conditions of the array elements are determined using Conjugate Gradient Method.