合成孔径雷达用的垂直极化天线
A VERTICAL POLARIZED ANTENNA FOR SYNTHETIC APERTURE RADAR
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摘要: 正 (一)引言 合成孔径雷达是成象雷达。它对测绘地区的地物目标进行成象。通常,雷达天线只辐射水平极化的电磁波,但由于地物目标的多样性和复杂性,往往对电磁波的极化有转换效应。为了使雷达尽可能多地收集地物目标的遥感信息,只作一种极化的发射和接收显然是不够的。为此,我们在研制辐射水平极化波的天线的基础上研制了辐射垂直极化波的天线,提供给雷达样机作飞行试验成象和图象比较用。 设计垂直极化天线采用的是波导隙缝线阵和喇叭形结构的方案。它的外形、尺寸和
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Abstract: This paper describes a simple design method of a vertical polarized antenna operated in the X-Band. This antenna consists of longitudinal shunt slotted array at the broad side of rectangular waveguide and metallic horned plates.A real size model was fabricated. The eomputed results are in agreement with measured ones approximately. Although this method is preliminary, it has practical value in antenna design. -
W. H. Watson, The Physical Principles of Wave Guide Transmission and Antenna Systems, Chapter 8,(1946).[2]Г.З.Айизенберг,Антенны Улътракоротких Волн Главы Ⅸ,Ⅺ,ⅩⅫ,Связъиздат Москва,1957.[3]田宪祖,电子科学学刊,5(1983), 192.[4]A. E. Ratkevich, Meteorological Radar Facility (MRF) Slot Conductance Investigations, NASA CR-152465. January, 1977. -
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