【摘要】 对双极化微带线阵交叉极化的抑制作了理论与实验研究。首先基于奇偶模对称原理,在理论上分析了二元阵倒相馈电技术,然后给出四种不同馈电结构的四元线阵设计,对此进行了分析、比较,获得一种性能比较理想的线阵并作了实测,理论与实测结果很吻合。实测结果表明:该四元线阵的交叉极化电平低于-27dB,两极化端口之间的隔离度在8. 74~9. 5GHz带宽上均大于34dB。更多还原

【Abstract】 The cross-polarization suppression of dual-polarized linear microstrip antenna arrays is investigated theoretically and experimentally. Based on the even-odd symmetry principle, the anti-phase feeding technique of a two-element array is analyzed firstly. Then four designs of 4-element linear microstrip antenna arrays are simulated and compared, resulting in a linear microstriop antenna array with satisfactory performance. The simulated results are in good agreement with the experimental ones. The experimental results show that the level of cross-polarization is less than -27dB and the isolation of two polarizaion ports for this linear array is better than 34dB in the entire frequency range of 8.74～9.5GHz.更多还原