摘要: |
为满足共形天线低剖面特性的要求,设计并制作了一种低剖面的圆极化阿基米德螺
旋天线。天线利用单臂阿基米德螺旋结构实现圆极化辐射,并采用同轴探针馈电。实测结果
表明,天线在2~11.4 GHz的频率范围内回波损耗小于-10 dB,轴比小于3 dB
的频率范围为25~8.4 GHz。该天线结构简单,工作频带宽,且剖面极低,可作为多
种载体的共形天线使用。 |
关键词: 共形天线 圆极化 平面螺旋 宽带 低剖面 |
DOI: |
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基金项目:国家自然科学基金资助项目(60872046) |
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Design of a conformal wideband circularly polarized spiral antenna |
LIU Zong-quan,QIAN Zu-ping,HAN Zhen-ping |
() |
Abstract: |
In order to meet the demand of lowprofile property of conformal antenna, a low
profile circularly polarized Archimedean spiral antenna is designed an
d manufactured. The antenna realizes circular polarization by single Archimedean
spiral arm which is fed by coaxial line. The measured results show that in 2~
11.4 GHz the return loss is less than -10 dB. The bandwidth
for AR (axi
al ratio)<3 dB is 2.5~8.4 GHz.The antenna configuration is simple with wide
bandwidth and especially its profile is extremely low. Therefore it can be used
as conformal antenna for many kinds of carriers. |
Key words: conformal antenna circular polarization planar spiral wideband low profile |