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引言很多技术领域的进展促进了雷达天线性能的提高,以现代空中交通管制(ATC)和防御雷达系统中最新进展为例,我们提出了一些天线结构的新形式。对结构复杂的天线的一般设计途径和某些解决方法作了概述。 ATC雷达天线阵不同的雷达阵地和应用类型对诸如方位波束宽度、仰角、作用范围、波束形状以及同时或顺序波束数等天线工作参数有不同的要求。除了极化分集外,有时需要组合反向极化以便用雷达回波来分析雨滴和其他气象情况。天线阵列中应用许多相同的组件来获得所需性能是机动雷达降低成本的有效途径。
INTRODUCTION Advances in many technological fields have contributed to the improvement of radar antenna performance. Taking the recent developments in modern air traffic control (ATC) and defense radar systems as an example, we propose some new forms of antenna structures. The general design approach and some solutions to the complex structure of the antenna are outlined. Different Radar Positions and Application Types of the ATC Radar Antenna Array have different requirements on antenna operating parameters such as azimuth beamwidth, elevation angle, range of action, beam shape, and number of simultaneous or sequential beams. In addition to polarization diversity, it is sometimes necessary to combine reverse polarizations to analyze raindrops and other weather conditions with radar echoes. Using many of the same components in an antenna array to achieve the required performance is an effective way to reduce the cost of maneuvering radars.