MILLIMETER-WAVE ELLIPTICAL LENS ANTENNA FOR FAN-BEAM MONOPULSE APPLICATIONS

被引:2
|
作者
Hua, C. Z. [1 ,2 ]
Wu, X. D. [2 ]
Yang, N. [2 ,3 ]
Wu, W. [1 ]
机构
[1] Nanjing Univ Sci & Technol, Minist Key Lab JGMT, Nanjing, Jiangsu, Peoples R China
[2] Zhejiang Univ, Dept Informat Sci & Elect Engn, Hangzhou, Zhejiang, Peoples R China
[3] City Univ Hong Kong, Dept Elect Engn, State Key Lab Millimeter Waves, Hong Kong, Hong Kong, Peoples R China
关键词
D O I
10.2528/PIERL12061117
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A novel two-dimensional elliptical lens monopulse antenna at millimeter-wave frequencies is presented using the technique of dielectric-filled parallel plates where TEio mode propagates. A cavity-backed aperture-coupled elliptical patch antenna array with sum/difference ports is located at the back of the elliptical lens as the feed antenna. The lens antenna is designed, fabricated and tested at 35 GHz. Measurements show that clean and symmetrical fan-beam patterns are realized for both the sum and the difference beams. The measured 3-dB E- and H-plane beamwidths of the sum pattern are 5.3 and 37, respectively. A gain of 16.7 dBi is realized for the sum beam (86% radiation efficiency), while a deep null of 32.4 dB is achieved for the difference beam. In addition, a 10-dB impedance bandwidth of 7.1% is measured for both the sum and difference beams.
引用
收藏
页码:197 / 205
页数:9
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