【作者】 陈素杰； 陈绪兵； 黄斌科； 胡党联；

【Author】 Chen sujie;Chen xubing;Huang binke;Hu danglian;Telecommunication College of Xi’an Jiao Tong University;School of Physics and Optoelectronic Engineering , Xidian University;

【机构】 西安交通大学电信学院； 西安电子科技大学物理与光电工程学院；

【摘要】 本文设计了一种应用于气象雷达的高增益、低副瓣阵列天线。该阵列天线由印刷对称振子组阵而成,实现了天线的高增益,通过串联馈电网络对印刷对称振子单元进行馈电,辐射单元的激励幅度采用泰勒综合法进行设计,实现了低副瓣。通过两组相互正交的印刷对称振子阵列可实现双线极化,通过波控机控制相位可实现水平各方向偏天顶15°的波束扫描。天线工作频带为1300MHz±10 MHz,天线驻波比小于1.3:1,增益达到24d Bi,副瓣峰值电平均低于-20d B,仿真和实物测量均满足性能指标。更多还原

【Abstract】 The paper presents a high-gain, low sidelobe antenna array design which is applied in meteorological radar, the high gain is achieved through the array of printing dipoles which is fed by series feed network. In order to realize the low sidelobe property for the antenna, the excitation amplitude of radiating elements is designed by the Taylor synthesis method. The experiments results show that the proposed antenna arrays can operate at the band of 1290-1310 MHz with the VSWR less than 1.3:1, and the maximum gain can arrive 24 d Bi while the sidelobe level is less than-20 d B. Moreover, the proposed antenna array is dual polarized in the horizontal plane, the ± 150 beam scan in all directions can be implemented by phase controlling with the wave controlled machine, the simulation and measurement results are both satisfied antenna performance requirement in meteorological radar systems.更多还原