为了避免如WiMax和WLAN等窄带通信系统对超宽带通信系统的影响，该文提出一种具有双陷波特性的超宽带天线。该天线采用圆形贴片作为辐射单元，通过在贴片和接地板上分别开圆弧状的H形槽和L形槽来实现双陷波特性。天线在3.1~10.6 GHz的...为了避免如WiMax和WLAN等窄带通信系统对超宽带通信系统的影响，该文提出一种具有双陷波特性的超宽带天线。该天线采用圆形贴片作为辐射单元，通过在贴片和接地板上分别开圆弧状的H形槽和L形槽来实现双陷波特性。天线在3.1~10.6 GHz的超宽带频段内能够有效地工作并抑制两种不同的窄带通信系统的干扰。同时圆弧状 H 形槽的参数研究表明，这种开槽结构能够以槽参数组合的形式更有效地控制陷波中心频率。实测和仿真结果吻合，该天线实现了良好的陷波功能，在工作频段内有良好的辐射方向特性。展开更多
综合运用缝隙耦合馈电技术、双线馈线技术和引入空气层等方式展宽了天线的频带,设计并仿真出一种工作在Ku频段＂H＂形缝隙耦合馈电的双极化微带天线。天线采用多层结构,减小了天线尺寸,天线单元的＂H＂形状耦合槽垂直放置,提高了两馈电...综合运用缝隙耦合馈电技术、双线馈线技术和引入空气层等方式展宽了天线的频带,设计并仿真出一种工作在Ku频段＂H＂形缝隙耦合馈电的双极化微带天线。天线采用多层结构,减小了天线尺寸,天线单元的＂H＂形状耦合槽垂直放置,提高了两馈电端口的隔离度,两端口同时馈电并电控调整馈电强度,从而合成线极化指向可变的辐射场。用三维电磁场仿真软件HFSS对天线阵的电特性进行了仿真和优化,结果表明：天线单元工作在12.25~12.75 GHz频率范围内,中心频点处增益为8.27 d B,回波损耗小于-10 d B时,相对阻抗带宽为10.1%,两个极化端口隔离度在40d B以上。展开更多
This paper represents parallel notch, H-shape slot loaded single layer patch antenna in X, and Ku bands for wideband applications. The design has made on low-cost material of Rogers R03003 substrate having dielectric ...This paper represents parallel notch, H-shape slot loaded single layer patch antenna in X, and Ku bands for wideband applications. The design has made on low-cost material of Rogers R03003 substrate having dielectric constant of 3.0 with thickness of 1.6.0 mm. The proposed scheme and probe feeding technique provide designed antenna to operate in two different frequencies range in X and Ku band (10.60 GHz to 15.91 GHz). The antenna resonates at 11.37 GHz for X band and another three resonates at 12.13 GHz, 13.14 GHz and 14.66 GHz for Ku band with maximum gain of 9.20 dBi respectively. The simulation results have been obtained 40.01% impedance bandwidth with return loss (-10 dB) or . The proposed antenna is simple in structure compared to the regular single layer patch antennas. It is highly suitable for satellite and RADAR communications system. Designing and simulation of this antenna have been done by IE3D software version 12.0, which is based on MOM method.展开更多
文摘为了避免如WiMax和WLAN等窄带通信系统对超宽带通信系统的影响，该文提出一种具有双陷波特性的超宽带天线。该天线采用圆形贴片作为辐射单元，通过在贴片和接地板上分别开圆弧状的H形槽和L形槽来实现双陷波特性。天线在3.1~10.6 GHz的超宽带频段内能够有效地工作并抑制两种不同的窄带通信系统的干扰。同时圆弧状 H 形槽的参数研究表明，这种开槽结构能够以槽参数组合的形式更有效地控制陷波中心频率。实测和仿真结果吻合，该天线实现了良好的陷波功能，在工作频段内有良好的辐射方向特性。
文摘综合运用缝隙耦合馈电技术、双线馈线技术和引入空气层等方式展宽了天线的频带,设计并仿真出一种工作在Ku频段＂H＂形缝隙耦合馈电的双极化微带天线。天线采用多层结构,减小了天线尺寸,天线单元的＂H＂形状耦合槽垂直放置,提高了两馈电端口的隔离度,两端口同时馈电并电控调整馈电强度,从而合成线极化指向可变的辐射场。用三维电磁场仿真软件HFSS对天线阵的电特性进行了仿真和优化,结果表明：天线单元工作在12.25~12.75 GHz频率范围内,中心频点处增益为8.27 d B,回波损耗小于-10 d B时,相对阻抗带宽为10.1%,两个极化端口隔离度在40d B以上。
文摘This paper represents parallel notch, H-shape slot loaded single layer patch antenna in X, and Ku bands for wideband applications. The design has made on low-cost material of Rogers R03003 substrate having dielectric constant of 3.0 with thickness of 1.6.0 mm. The proposed scheme and probe feeding technique provide designed antenna to operate in two different frequencies range in X and Ku band (10.60 GHz to 15.91 GHz). The antenna resonates at 11.37 GHz for X band and another three resonates at 12.13 GHz, 13.14 GHz and 14.66 GHz for Ku band with maximum gain of 9.20 dBi respectively. The simulation results have been obtained 40.01% impedance bandwidth with return loss (-10 dB) or . The proposed antenna is simple in structure compared to the regular single layer patch antennas. It is highly suitable for satellite and RADAR communications system. Designing and simulation of this antenna have been done by IE3D software version 12.0, which is based on MOM method.
