本文關(guān)鍵詞： 人工磁導(dǎo)體 棋盤型結(jié)構(gòu) 雷達(dá)散射截面(RCS)縮減 微帶天線　出處：《微波學(xué)報(bào)》2017年01期 　論文類型：期刊論文

【摘要】：利用棋盤型人工磁導(dǎo)體(AMC)結(jié)構(gòu)研究微帶天線RCS的縮減技術(shù)。給出AMC耶路撒冷十字結(jié)構(gòu)的等效電路模型,據(jù)此設(shè)計(jì)兩個(gè)不同的AMC耶路撒冷十字,使其產(chǎn)生180°的反射相位差,并組成棋盤型結(jié)構(gòu)。當(dāng)平面波垂直入射到加載棋盤型AMC結(jié)構(gòu)的微帶天線表面時(shí),實(shí)現(xiàn)了反射波的相消干涉。在天線帶內(nèi)和帶外12~24 GHz都明顯降低了微帶天線的RCS,最大可以達(dá)到36 d B的縮減,并且天線的輻射特性基本保持不變。
[Abstract]:The RCS reduction technique of microstrip antenna is studied by using the chessboard artificial magnetic conductor (AMC) structure. The equivalent circuit model of AMC Jerusalem cross structure is given. Based on this, two different AMC Jerusalem cross are designed to produce 180 擄reflection phase difference. When the plane wave is vertically incident to the surface of the microstrip antenna loaded with the chessboard AMC structure, The interference cancellation of reflected wave has been realized. Both in and out of the band 1224 GHz can obviously reduce the GHz of microstrip antenna, the maximum can be reduced to 36 dB, and the radiation characteristic of the antenna remains basically unchanged.
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本文編號(hào)：1507611