Beam steering antenna design for low altitude radar systems
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, vol.11, no.2, pp.215-224, 1997 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 11 Issue: 2
- Publication Date: 1997
- Doi Number: 10.1163/156939397x00170
- Journal Name: JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.215-224
- TED University Affiliated: No
Abstract
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.