Aperiodic Arrays for Spaceborne SAR Applications

被引：39

作者：

Luison, Cristian ^{[1
]}

Landini, Alberto ^{[1
]}

Angeletti, Piero ^{[1
]}

Toso, Giovanni ^{[1
]}

Valle, Paolo ^{[2
]}

Capece, Pasquale ^{[2
]}

Selleri, Stefano ^{[3
]}

Pelosi, Giuseppe ^{[3
]}

机构：

[1] European Space Agcy, NL-2200 AG Noordwijk, Netherlands

[2] Thales Alenia Space Italia SpA, I-00131 Rome, Italy

[3] Univ Florence, Dept Elect & Telecommun, I-50139 Florence, Italy

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2012年 / 60卷 / 05期

关键词：

Antenna arrays; linear antenna arrays; phased arrays; spaceborne radar; synthetic aperture radar (SAR); ANTENNA PATTERN SYNTHESIS;

D O I：

10.1109/TAP.2012.2189714

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：

An innovative three-step procedure for the synthesis of linear phased arrays with nonuniformly spaced elements is presented. The main objective is to obtain an array with a minimal number of elements and an optimal efficiency of the amplifiers driving the elements. The procedure consists of three steps. First of all, a periodic array with a single-amplitude tapering and as much phase tapering as there are required shaped patterns is derived. Then, starting from the results of the first step, an equiamplitude nonperiodic array, with a number of phase tapering equal to the number of required patterns and with a minimum number of radiators is synthesized. Finally, a numerical optimization permits refining the results so as to satisfy the design constraints.

引用

页码：2285 / 2294

页数：10

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