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引言与某些类型天线相比,短背射天线具有增益高、波束对称、旁办及后办低、重量轻、纵向尺寸短、结构平嵌简单、一致性好、加工、装配、调试容易等一系列独特的优点。在飞行器上及地面无线电设备中,既适合作单独天线,又适合作反射面天线的馈源,特别适于作阵列天线单元。因此,引起了国内外的广泛注意,进行了大量的实验研究和理论分析工作。虽已付诸工程使用,但此种天线的辐射特性尚未得到精确的理论结果,因而缺乏规范设计方法,有待于进一步解决。
Introduction Compared with some types of antennas, the short back-projection antenna has the advantages of high gain, symmetrical beam, low side-weight and low side-to-side length, simple structure and easy installation, good consistency, easy processing, assembly and debugging A series of unique advantages. In aircraft and terrestrial radio equipment, both suitable as a separate antenna, but also suitable as a reflector antenna feed, especially suitable for array antenna unit. Therefore, aroused widespread attention at home and abroad, conducted a large number of experimental research and theoretical analysis. Although it has been put into engineering use, the radiation characteristics of such antennas have not yet been accurately theoretical results, so the lack of standardized design methods need to be further resolved.