宽带短波大扫描角相控阵天线的研究

对宽带短波大扫描角相控阵天线进行了详细的研究,从天线单元的形式、宽带阻抗匹配、系统噪声、阵列单元的布局,以及对使用环境的要求进行了设计考虑。工程上解决了天线辐射单元的宽带阻抗匹配、效率等问题;同时,给出了实测结果,交替的三角排列解决了相控阵天线的宽角扫描问题,并从经济实用、可靠性等方面给出了地网的设计原则;最后,给出天线阵的仿真结果,并结合未来的发展趋势,提出短波相控阵天线新的设计思想。

A Study on Broadband Shortwave Wide-ngle Phased Array Antenna

A detailed study is conducted on broadband shortwave wide-ngle phased array antenna with focuses on the following design aspects: the form of antenna units, roadband impedance matching, system noise, the arrangement of array units as well as working environment. During the study, challenges like broadband impedance matching and efficiency of the antenna radiating units are resolved in engineering with actual measured results provided. Alternative triangle arrangement is used to resolve the challenge of broadband scanning of phased array antenna. Design principles of ground grids are summarized with affordability and reliability taken into consideration. At the end of this paper, simulation results of antenna array are provided, and new design ideas are suggested for shortwave phased array antenna by taking the future trend into consideration.