【作者】 王雄； 阮成礼； 江瑛；

【Author】 Wang Xiong Ruan Chengli Jiang Ying (School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.)

【机构】 电子科技大学物理电子学院；

【摘要】 对超宽带异面Vivaldi天线进行了分析,完成了接收天线的设计。通过微带到平行双线的过渡改善了天线的低频特性,并对加入过渡后的天线进行仿真,在300MHz~3GHz频段内,反射系数低于-10dB,在300MHz时,增益为1.04dB,在3GHz时,增益达到8.7dB。E面方向图有较稳定的全向性。对线极化接收天线和多极化天线阵列有较高研究价值。更多还原

【Abstract】 This paper analysed ultra-wideband antipodal Vivaldi antenna, designed well-performed receiving antenna. The transition from microstrip to parallel lines betters the characteristic of the antenna when frequency is low. Then, this paper simulated the whole antenna with the transition. The result shows the antenna performed well in 309MHz~3GHz when return loss is lower than -10dB. The antenna gain is 1.04dB, 8.7dB at 300MHz and 3GHz respectively. In addition, the E-plane radiation pattern is Omni directed and stable in the frequency range. This is quite valuable for the research of linear polarized antenna and mixed polarized antenna array.更多还原