Horn Antenna has many applications such as communication, radar, and standard reference antenna for measurement. In this research, we designed a pyramidal horn for a Circularly Polarized Synthetic Aperture Radar (CP-S...Horn Antenna has many applications such as communication, radar, and standard reference antenna for measurement. In this research, we designed a pyramidal horn for a Circularly Polarized Synthetic Aperture Radar (CP-SAR) sensor onboard a microsatellite. We utilized a 3D printer with Fused Deposition Modelling (FDM) technology for fast, low-cost, and low-weight production. Polylactide (PLA) material was used to construct 3D structures, and a copper conductive coating was painted on its surface. Gaussian distribution function was employed to create a septum polarizer profile. NPC-220 A with 1.6 thickness and 2.17 dielectric constant was used to make a microstrip monopole antenna and stripline feeding to feed the pyramidal horn to generate TE01 mode at one side of the waveguide. The design, parametric studies, and measurements are discussed in this paper. The designed antenna can achieve wide bandwidth 28% of 3 dB axial ratio, and more than 22% of s11 ≤ −10 dB in working frequency that is acceptable for CP-SAR requirement on the microsatellite.展开更多
针对传统的天线设计方法中尺寸计算耗时和手工建模时间长等问题,提出一种VS2013协助HFSS(High Frequency Structure Simulator)设计天线的方法,来提高天线设计效率。以工作于Ku频段(10~15GHz)的角锥喇叭天线为例,利用MFC的对话框视图框...针对传统的天线设计方法中尺寸计算耗时和手工建模时间长等问题,提出一种VS2013协助HFSS(High Frequency Structure Simulator)设计天线的方法,来提高天线设计效率。以工作于Ku频段(10~15GHz)的角锥喇叭天线为例,利用MFC的对话框视图框架开发了相应的软件操作界面,能够根据天线设计指标自动计算天线尺寸参数,并在自动调用HFSS后执行VBScript脚本文件,实现天线的参数化建模,从而仿真得到天线的性能参数。仿真结果表明:在工作带宽内,天线的回拨损耗优于-19.3 d B,驻波比不大于1.25 d B,中心频率处增益达到16.69 d B。所设计的角锥喇叭天线具有较高的增益,既可作为独立天线使用,也可作为反射面天线的馈源。该方法不仅能够提高天线设计效率,而且为天线相关的教学和科研工作者提供了有效的辅助工具。展开更多
文摘Horn Antenna has many applications such as communication, radar, and standard reference antenna for measurement. In this research, we designed a pyramidal horn for a Circularly Polarized Synthetic Aperture Radar (CP-SAR) sensor onboard a microsatellite. We utilized a 3D printer with Fused Deposition Modelling (FDM) technology for fast, low-cost, and low-weight production. Polylactide (PLA) material was used to construct 3D structures, and a copper conductive coating was painted on its surface. Gaussian distribution function was employed to create a septum polarizer profile. NPC-220 A with 1.6 thickness and 2.17 dielectric constant was used to make a microstrip monopole antenna and stripline feeding to feed the pyramidal horn to generate TE01 mode at one side of the waveguide. The design, parametric studies, and measurements are discussed in this paper. The designed antenna can achieve wide bandwidth 28% of 3 dB axial ratio, and more than 22% of s11 ≤ −10 dB in working frequency that is acceptable for CP-SAR requirement on the microsatellite.
文摘针对传统的天线设计方法中尺寸计算耗时和手工建模时间长等问题,提出一种VS2013协助HFSS(High Frequency Structure Simulator)设计天线的方法,来提高天线设计效率。以工作于Ku频段(10~15GHz)的角锥喇叭天线为例,利用MFC的对话框视图框架开发了相应的软件操作界面,能够根据天线设计指标自动计算天线尺寸参数,并在自动调用HFSS后执行VBScript脚本文件,实现天线的参数化建模,从而仿真得到天线的性能参数。仿真结果表明:在工作带宽内,天线的回拨损耗优于-19.3 d B,驻波比不大于1.25 d B,中心频率处增益达到16.69 d B。所设计的角锥喇叭天线具有较高的增益,既可作为独立天线使用,也可作为反射面天线的馈源。该方法不仅能够提高天线设计效率,而且为天线相关的教学和科研工作者提供了有效的辅助工具。
