小型預警機主雷達天線的機體散射
Scattering of the main radar antenna fixed on mini-AWACS
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摘要: 該文以一致性幾何繞射理論(UTD)為基礎(chǔ),利用新提出的疊加模型對小型預警機主雷達相控陣天線的機體散射(包括螺旋槳散射)進行了分析,定量得出了這些散射的特點和變化規(guī)律,為天線裝機后輻射性能預測與布局優(yōu)化提供了理論依據(jù)。
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關(guān)鍵詞:
- 小型預警機; 螺旋槳; 相控陣天線; 一致性幾何繞射理論; 機體散射; 疊加模型
Abstract: Based on the Uniform Geometric Theory of Diffraction (UTD), the scattering of aircraft including propellers for the phased-array of the main radar is analysed by using of a new additive model of antenna. The variety and characteristic of the scattering is presented quantitatively. It can be used as a theoretical basis to dope out the radiation performance and optimize the arrangement of antennas. -
J. B. Keller, Geometrical theory of diffraction, J. Opt. Soc. Am., 1962, 52(2), 116-130.[2]R.G. Kouyoumijan, P. H. Pathak, A uniform theory of diffraction for an edge in a perfectly conducting surface, Proc. IEEE, 1974, 62(11), 1448-1461.[3]B.N. Suresh Babu, T. P. Guella, Effect of antenna aircraft interaction on phased-array radar lerformance, IEEE National radar conference, Bedford, 1993, 102-106.[4]汪茂光,幾何繞射理論,西安,西安電子科技大學出版社(第二版),1994年12月,第2,4,5章.[5]馬鳳國,劉其中,等,大口面天線機體散射效應分析,微波學報,1999,15(3),238-243. -
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