【摘要】 采用"hour glass"形状缝隙设计了一种新型宽带缝隙耦合微带天线,分析了缝隙参数对天线输入阻抗的影响。该天线使用了多层聚四氟乙烯介质,不仅对贴片单元进行了保护,而且增加了天线的机械强度。同时,由于其结构简单,因此便于阵列集成。研究结果表明,该天线相对带宽超过30%(VSWR<2.0),E面和H面交叉极化分别低于-40 dB和-35 dB。更多还原

【Abstract】 A wide-band slot-coupled microstrip antenna is designed with an "hour glass" shape slot in this paper.The antenna is stacked by a multi-layer dielectric(PTFE) which protects the antenna patch against environment influences,and increases the configuration strength.Meanwhile,the antenna is easy to configure as an array due to its simple geometry.The study results indi-cate the bandwidth of the antenna exceeds 30%(VSWR<2),and the cross-polarization level in E and H planes is lower than-40 dB and-35 dB,respectively.更多还原