MILLIMETER-WAVE INTEGRATED-HORN ANTENNAS .2. EXPERIMENT

被引:13
作者
ALIAHMAD, WY [1 ]
ELEFTHERIADES, GV [1 ]
KATEHI, LPB [1 ]
REBEIZ, GM [1 ]
机构
[1] UNIV MICHIGAN,DEPT ELECT ENGN & COMP SCI,ANN ARBOR,MI 48109
关键词
D O I
10.1109/8.102772
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
The impedance and radiation patterns of a dipole-fed integrated horn antenna in a ground plane are experimentally investigated at microwave and millimeter-wave frequencies. The agreement with the full-wave analysis technique presented in Part I is good. The results indicate that for a 70-degrees flare-angle horn, horn apertures from 1.0-lambda-square to 1.5-lambda-square with dipole positions between 0.36 and 0.55-lambda yield good radiation patterns with a gain between 10-13 dB, a cross-polarization level lower than -20 dB, and resonant dipole impedances between 40-OMEGA and 120-OMEGA. It is also found that the impedance measurements can be safely used for two-dimensional horn arrays, but the radiation patterns differ because of the Floquet modes associated with the array environment. The integrated horn antenna is a high-efficiency antenna suitable for applications in millimeter-wave imaging systems, remote-sensing, and radio astronomy.
引用
收藏
页码:1582 / 1586
页数:5
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