摘要: |
描述了多层微带阵列天线,辐射单元通过带状线一个地板耦合馈电。为获得好的旁瓣抑制能
力及加工容差,采用遗传算法优化,得到工程上实用的天线口径分布。制作了一个天线,获
得27.3 dB的增益,波束宽度4.2°。实测结果表明在Ka频段实现了100%的旁瓣抑制
。 |
关键词: Ka频段 多层微带阵列天线 旁瓣抑制 遗传算法 天线综合 |
DOI: |
|
基金项目: |
|
Design and optimization of a monopulse multi-layer microstrip array antenna in Ka-band |
LI Feng,GUAN Zheng-tao,ZHAO Lu |
() |
Abstract: |
A multilayer microstrip array antenna is described. Radiation elements are fe
d
by a slot etched on a grounding conductor plate of the stripline. The genetic al
gorithm(GA) is introduced to get a practical distribution which is good for side
lobe suppression and tolerance. An antenna is made for testing,whose beamwidth i
s 4.2°,gain is 27.3 dB. The measurement shows 100% sidelobe suppression
is obtained in Kaband. |
Key words: Ka band multi layer microstrip array antenna sidelobe suppression genetic
a
lgorithm antenna pattern synthesis |