该文基于互补天线的原理,研究了一种基于印刷振子和圆形微带贴片的双极化天线单元,其中印刷振子为电流辐射源,圆形微带贴片等效为磁流辐射源,它们分别组成了两个极化端口,在空间形成双极化的辐射场。采用全波电磁仿真技术对该天线结构...该文基于互补天线的原理,研究了一种基于印刷振子和圆形微带贴片的双极化天线单元,其中印刷振子为电流辐射源,圆形微带贴片等效为磁流辐射源,它们分别组成了两个极化端口,在空间形成双极化的辐射场。采用全波电磁仿真技术对该天线结构进行了电磁仿真和优化设计,仿真结果表明,在工作频带范围内,所设计的双极化天线的隔离度达到22 d B以上,在主辐射方向的交叉极化电平低于-20 d B。加工了双极化天线单元并进行了测试,其电压驻波比、端口隔离度和交叉极化电平均满足双极化天线的技术指标要求,验证了该双极化天线设计的可行性。展开更多
A wideband dual-polarized slot-coupled stacked microstrip antenna with very high isolation and low cross-polarization is presented. To improve isolation between two poiarization ports, the stacked patches are excited ...A wideband dual-polarized slot-coupled stacked microstrip antenna with very high isolation and low cross-polarization is presented. To improve isolation between two poiarization ports, the stacked patches are excited by an open-ended and a T-shaped microstrip lines both via two H-shaped slots placed in a ＂T＂ configuration. The measured isolation is better than 40.5 dB over the bandwidth from 8.8 to 9.8 GHz with cross-polarization level less than - 28.5 dB. The measured VSWR ≤ 2 bandwidths reach 20.7 96 and 19.196 at the verrical and horizontal polarization ports, respectively. This antenna is suitable to be used as array elements in spacebome synthetic aperture radars （SAR） and active phased array radars.展开更多
文摘该文基于互补天线的原理,研究了一种基于印刷振子和圆形微带贴片的双极化天线单元,其中印刷振子为电流辐射源,圆形微带贴片等效为磁流辐射源,它们分别组成了两个极化端口,在空间形成双极化的辐射场。采用全波电磁仿真技术对该天线结构进行了电磁仿真和优化设计,仿真结果表明,在工作频带范围内,所设计的双极化天线的隔离度达到22 d B以上,在主辐射方向的交叉极化电平低于-20 d B。加工了双极化天线单元并进行了测试,其电压驻波比、端口隔离度和交叉极化电平均满足双极化天线的技术指标要求,验证了该双极化天线设计的可行性。
文摘A wideband dual-polarized slot-coupled stacked microstrip antenna with very high isolation and low cross-polarization is presented. To improve isolation between two poiarization ports, the stacked patches are excited by an open-ended and a T-shaped microstrip lines both via two H-shaped slots placed in a ＂T＂ configuration. The measured isolation is better than 40.5 dB over the bandwidth from 8.8 to 9.8 GHz with cross-polarization level less than - 28.5 dB. The measured VSWR ≤ 2 bandwidths reach 20.7 96 and 19.196 at the verrical and horizontal polarization ports, respectively. This antenna is suitable to be used as array elements in spacebome synthetic aperture radars （SAR） and active phased array radars.
