阵列口径外多层介质加载问题的简化处理
A SIMPLE WAY TO HANDLE THE PROBLEM OF LOADINGWITH MULTILAYERED DIELECTRIC SHEATHS OUTSIDETHE ARRAY APERTURE
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摘要: 正 (一)引言 阵列天线一般是由称为单元的许多小天线组成的,由于是露天工作,它必须防雨、防尘和防潮。而天线罩的加入,阵列性能下降不应太大。此外,以扫描为特征的相控阵,其性能是与扫描角紧密相关的,其变化规律在两个主平面是相反的,如图1所示。为了在要求的空域内达到更好的阻抗匹配特性、达到宽角扫描和能量充分利用的目的,应当选择这样一种材料做天线罩:即当波投射于该材料时,它对波产生的电
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Abstract: In this paper the effects of dielectric sheet on the array antenna are described on the concept of element cell. The formulae suitable for the computer calculation are derived by the use of transmission line circuit theory. Useful results are obtained by the use of computer type-719, and the correctness of the results is discussed. The theoretical data are in agreement with experimental results obtained from the waveguide simulators. -
李祥林、姚以慈,矩形波导单元相控阵天线阵面的理论计算与设计,中国电子学会天线年会报告(1979).[2]E. G. Magill and H. A. Wheeler, Proe. IEEE Trans. on AP, AP-14(1966), 49.[3]西安电讯工程学院,微波传输线,(1976), 26.[4]P. W. Hannan and M. A. Ralfor, Proe. IEEE Trans. on AP, AP-13(1965), 342. -
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