标题: Active frequency-tune beam-scanning leaky-wave antenna arrays
作者: Wang, CJ
Wu, JJ
Jou, CF
传播研究所
Institute of Communication Studies
关键字: beam-scanning;the leaky-wave antenna arrays;the reflected wave;the first higher order mode;phase-shifterless
公开日期: 1-二月-1998
摘要: X-band active beam-scanning leaky-wave antenna arrays, including 1 X 1, 1 X 2 and 1 X 4 prototypes, have been demonstrated. These antennas integrated one or several microstrip leaky-wave antenna elements with a single varactor-tuned HEMT VCO as an active source. Measured results on experimental antennas indicate that the beam scanning angle of the 1 X 1 antenna close to 40(0) can be achieved and the scanning range of 1 X 2 and 1 X 4 antenna arrays are both close to 32(0), Furthermore, reflected wave due to the open end of each leaky-wave antenna element has been suppressed by the symmetric configuration of this antenna array and the antenna efficiency increases. When comparing with the measured radiation pattern of the single element antenna, we found that the 1 X 2 and 1 X 4 antenna arrays can effectively suppress the reflected power by more than 5.5 dB and 10.5 dB, respectively, at 10.2GHz. The power gain are more than 2 dB and 3.16 dB higher than the single element antenna with a measured EIRP of 18.67 dBm.
URI: http://hdl.handle.net/11536/25
ISSN: 0195-9271
期刊: INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES
Volume: 19
Issue: 2
起始页: 349
结束页: 364
显示于类别:Articles


文件中的档案:

  1. 000072114200011.pdf

If it is a zip file, please download the file and unzip it, then open index.html in a browser to view the full text content.