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

被引：8

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

来源：

IEEE ANTENNAS AND PROPAGATION MAGAZINE | 2019年 / 61卷 / 05期

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

页码：97 / 104

页数：8

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