Eleven antenna loaded with lumped elements for square kilometer array application

摘要：

The return loss of tradition eleven antennas is large and the reflected energy will effect circular polarization characteristics. In this paper, an eleven antenna loaded with lumped resistances of 470 ￡2 is presented for square kilometer array (SKA) radio telescope application. The eleven antenna is a traveling wave antenna and the lumped resistance is loaded to absorb the reflected energy. The proposed eleven antenna has a bandwidth from 0.4 GHz to 2 GHz for VSWR < 2.1: 1. The 10 dB main beam is about 102°. Compared with tradition eleven antennas, only about 5％ efficiency is reduced. A experimental model is fabricated to validate the analytical results. Obtained experimental results are in good agreement with numerical data.

关键词： Eleven antenna ultra-wideband (UWB) antenna square kilometer array (SKA)

作者: Huan-Huan Xie Yong-Chang Jiao Fu-Shun Zhang

作者单位: National Key Laboratory of Antennas and Microwave Technology,Xidian University, Xian, Shaanxi, 710071, Peoples Republic of China

会议类型: 国际会议

会议名称: 2011 China-Japan Joint Microwave Conference(2011年中日微波会议CJMW 2011)

会议地点: 杭州

会议语种:英文

页码: 88-90

在线出版日期: 2011-04-20（万方平台首次上网日期，不代表论文的发表时间）