振子陣列天線的雷達(dá)截面積
RADAR CROSS-SECTION ANALYSIS OF DIPOLE-ARRAY ANTENNAS
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摘要: 本文用矩量法,對(duì)大型平面陣列和圓陣柱陣列天線在不同加載情況下的散射進(jìn)行了研究。在考慮振子互耦情況下,計(jì)算出振子上的電流分布,并得到陣列的雷達(dá)截面積(RCS)。實(shí)驗(yàn)結(jié)果表明,理論值與實(shí)驗(yàn)值兩者基本趨勢(shì)一致。文中采用的平面陣加截和共形曲面陣技術(shù),可大幅度地縮減振子陣列天線的RCS,具有實(shí)際的工程意義。
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關(guān)鍵詞:
- 天線; 雷達(dá)截面; 電磁波散射
Abstract: The study of the back scarering from a planar or cylindrical array of loaded dipoles is presented. The current distribution on the dipoles and the radar cross-section (RCS) of the array in consideration of the interaction among dipoles are obtained by the moment method. Theoretical results are compared with the measured ones, and good agreement is achieved. The loading array technique and the curved surface array technique would greatly reduce the RCS of an array, which would be valuable for engineering applications. -
K. M. Chen, V. Liepa, IEEE Trans. on AP, AP-12(1964), 576-582.[2]K. M. Chen, IEEE Trans. on AP, AP-14(1966), 318-323.[3]K. M. Chen, IEEE Trans. on AP, AP-13(1965), 263-270.[4]I. P. Yu, L. C. Shen, IEEE Trans. on AP, AP-19(1971), 554-557.[5]W. L. Stutzman, G. A. Thiele, Antenna Theory and Design, Wiley, New York, (1981), p. 331.[6]K. F. Lee.[J].Principle of Antenna Theary, JohnwHeySons.1984,:- -
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