A Ka-Band Spaceborne Synthetic Aperture Radar Instrument: A modular sparse array antenna design

被引:10
作者
Bekers, Dave J. [1 ]
Jacobs, Sebastiaan [2 ]
Monni, Stefania [1 ]
Bolt, Roland J. [1 ]
Fortini, Danilo [3 ]
Capece, Pasquale [3 ]
Toso, Giovanni [4 ]
机构
[1] TNO Def Safety & Secur, Radar Technol Dept, The Hague, Netherlands
[2] TNO Def Safety & Secur, The Hague, Netherlands
[3] Thales Alenia Space Italia, Antenna Dept, Rome, Italy
[4] European Space Agcy, Noordwijk, Netherlands
关键词
PHASED-ARRAYS;
D O I
10.1109/MAP.2019.2932617
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The article presents the design of a Ka-band synthetic aperture radar (SAR) instrument based on innovative phased-array antennas, with steering capability in azimuth and elevation. To limit the complexity and costs associated with conventional large active arrays with regular layouts, a sparse array concept is presented. The proposed approach results in a 40% reduction in the number of active controls, with a marginal reduction in performance compared to conventional phasedarray solutions previously developed for SAR instruments. Additionally, a preliminary thermomechanical design is presented to assess the challenges associated with the industrial production and to identify options for accommodation on the spacecraft.
引用
收藏
页码:97 / 104
页数:8
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