隙縫饋電平面陣天線
SLOT FEEDING PLANAR ARRAY ANTENNA
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摘要: 正 (一)基本要求 合成孔徑雷達(dá)原理樣機(jī)需要一部工作在X波段,發(fā)射水平極化波的扇形波束天線。天線的波束寬度沿飛機(jī)航向(E平面)約1,垂直于航向(H平面)為9,增益為30 dB;或在H平面上于11的波束寬度內(nèi),將波束賦形為CSC2()為波束寬度),增益為27dB。天線的結(jié)構(gòu)要適于作側(cè)視安裝。 (二)方案選擇 滿足以上條件的天線方案有三類:(1)以線陣作照射器,柱形拋物面作反射器的復(fù)合天線;(2)以線陣作輻射器,外加有一定張角的兩塊板構(gòu)成線陣?yán)刃翁炀€;(3)平面
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關(guān)鍵詞:
Abstract: The article describes a planar array with a slot feeding structure in x-band. The design of the slot linear array with rectangular waveguide and the radiation patterns (E plane and H plane) of the slot feeding planar array are discussed. It is not difficult to design an aperture distribution of the linear array, in order to obtain a specified vertical pattern by means of various slant angles of the slot and phase shifts of the phaser. The calculated and experimental results are also shown. -
S. Silver, Microwave Antenna Theory and Design, Chapter 9(1948).[2]А.З.Аизенберг著,畢德顯等譯,超高頻天線,人民郵電出版社,1961年.[3]鐘順時(shí),西北電訊工程學(xué)院學(xué)報(bào),1976年,第1期,第165頁.[4]Н.Т.Бова 著,南京大學(xué)物理系無線電教研組譯,超高頻天線,高等教育出版社,1959年.[5]J. L. Hilburn, IEEE Trans. on AP, AP-20 (1972), 506.[6]G. W. Roffoul, IEEE Trans. on AP, AP-22 (1974), 355.[7]馮孔豫,電子學(xué)通訊,2(1980), 95. -
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