タイトル | Ka-and Reflectarray for Interferometric SAR Altimeter |
著者(英) | Zawadzki, Mark; Hodges, Richard |
著者所属(英) | Jet Propulsion Lab., California Inst. of Tech. |
発行日 | 2012-07-08 |
言語 | eng |
内容記述 | This paper describes a large dual-beam, dual polarized Ka-Band reflectarray antenna prototype which was developed to demonstrate that key requirements of a space borne interferometric radar altimeter are achievable. The antenna consists of a 2.5 x 0.26 m aperture comprised of a rectangular grid of square patch printed circuit elements. The 2.6 m focal length offset-fed reflector is illuminated by a waveguide slot array feed focused in the nearfield. Measured results show good agreement with gain and radiation pattern predictions and demonstrates >50% aperture efficiency. |
NASA分類 | Communications and Radar |
権利 | Copyright |
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