【作者】 张萌； 黄桃； 刘涓； 宫大鹏； 时亮； 刘海鹏；

【Author】 Meng Zhang;Tao Huang;Juan Liu;Dapeng Gong;Liang Shi;Haipeng Liu;National Key Laboratory of Science and Technology on Vacuum Electronics,University of Electronic Science and Technology of China;Beijing Institute of Remote Sensing Equipment;

【机构】 电子科技大学微波电真空器件国家级重点实验室； 北京遥感设备研究所；

【摘要】 本文设计了一种Ku-K波段的单馈点宽频带圆极化微带天线,该天线由矩形介质基片和切角贴片构成。通过综合运用同轴线馈电、切角馈电及多贴片谐振等技术得到了28.7%的阻抗带宽以及15.6%的轴比带宽。与此同时,将该圆极化天线单元进行旋转馈电处理,可得到轴比AR≤0.7 dB,覆盖的宽带范围为16.42～20.20 GHz的阵列天线形式。此阵列天线不仅加强和改善了方向图的方向性,而且提高了天线的辐射增益。更多还原

【Abstract】 In this paper,a Ku-K band single-fed broadband circularly polarized microstrip antenna is designed.The antenna is composed of rectangular dielectric substrate and corner patch.The cut-angle patch makes the microstrip antenna work in circular polarization.The impedance bandwidth of 28.7% and the axial ratio bandwidth of 15.6%are obtained by using coaxial line feeding,tangential angle feeding and multi-patch resonance.At the same time,the circularly polarized antenna array with AR≤0.7 dB and broadband coverage of 16.42～20.20 GHz can be obtained by rotating feed processing.This array antenna not only strengthens and improves the directivity of the pattern,but also improves the radiation gain of the antenna.更多还原