Microstrip antennas for SAR applications
Microstrip antennas for SAR applications
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DOI：
10.1109/8.719972
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发表时间：
1998-09
影响因子：
5.7
通讯作者：
R. Pokuls;J. Uher;D. Pozar
中科院分区：
文献类型：
--
作者：
R. Pokuls;J. Uher;D. Pozar
本文讨论了星载合成孔径雷达（SAR）应用中实现共用孔径双频双极化阵列天线的各种方法。在评估了几种潜在的阵列架构概念和辐射元件的使用后，选择了使用交错的C波段微带贴片和X波段印刷槽元件的设计作为当前系统要求的最佳选择。两个阵列及其相关的馈电网络的布局考虑，解决在一个实际的设计。设计、制作并测试了一种双频（C波段和X波段）双线极化SAR阵列天线样机。这项工作的主要目标是证明双波段双极化阵列概念的可行性，这一点已经实现。测试结果表明，测量结果和预测结果之间具有良好的相关性，验证了所使用的设计方法。这项工作表明，在一个单一的孔径双频双极化SAR天线是一种可行的方法，以满足用户的要求，在未来的SAR航天器。
This paper discusses various methods of implementing a shared-aperture dual-frequency dual-polarized array antenna for spaced-based synthetic aperture radar (SAR) applications. After evaluating the use of several potential array architecture concepts and radiating elements, a design using interlaced C-band microstrip patches and X-band printed slot elements was chosen as the best choice for the present system requirements. Layout considerations for the two arrays and their associated feed networks are addressed in terms of a practical design. A dual-frequency (C- and X-band), dual-linear polarized SAR array antenna prototype was designed, fabricated, and tested. The principal goal of this effort was to demonstrate the viability of the dual-band dual-polarized array concept, and this has been accomplished. Test results are shown with good correlation between measured and predicted results, validating the design approach used. This work demonstrates that a dual-frequency dual-polarization SAR antenna within a single aperture is a feasible approach to meeting user requirements in future SAR spacecraft.