Rotman Lens Designer
Rotman Lens Designer 简称RLD是REMCOM公司推出,专门用于设计,分析和合成各种罗德曼透镜和其变体,RLD可以透过用户输入的机构和电子等设计参数,套用几何光学和古典罗德曼透镜的设计公式,可以快速地完成设计和分析工作。
RLD可以建立罗德曼透镜的轮廓,transmission line geometry,absorptive port (dummy port) geometry等特征,同时会提供一个近似的性能分析,并且建立几何模型,可以用于同为REMCOM公司的高频电磁软件XFdtd使用并且进行后续的模拟分析工作。
Rotman Lens Designer 的各种功能
RLD 可以运用典型的罗德曼透镜参数建立基础设计,依据这些输入,RLD可以产出各种延伸的输出数据并且显示在软件操作接口里,以下是一些重要的输入和输出参数:
Inputs:
- Type of lens - microstrip or stripline
- Impedance of lines
- Element spacing on the antenna
- Number of elements (up to 128)
- Number of beams (up to 128)
- Maximum scan angle
- Off-axis focii angle as a fraction of max scan angle
- Bandwidth and center frequency
- Electrical characteristics of lens material - dielectric constant, loss tangent, conductivity and thickness of dielectric material
- Electrical characteristics of absorber material
- Physical characteristics of lens - focal length/diameter ratio
- Aperture distribution
- Port flare angles
Outputs:
- Calculation of the lens contour and of the transmission line geometry
- Element locations along the lens contour
- Insertion loss (per beam port)
- Amplitude and phase distributions of the array ports versus frequency
- Beam to array phase error
- Beam to array coupling magnitude and phase
- Beam to array sidewall coupling magnitude
- Beam to array spillover coupling magnitude
- Array to beam coupling magnitude and phase
- Array to beam sidewall coupling magnitude
- Array to beam spillover coupling magnitude
- S-parameters for all ports
- Suggested focal length
- Number of dummy elements
- Location of loads on dummy elements
- Location of absorber if necessary
- Dimensions, volume
- Gerber format files may be exported with third-party software
- XFdtd format files may be exported for full wave analysis
- Export to SAT format
软件运作环境需求:
- Windows 2000 或 XP以上
- Red Hat Enterprise Linux 4 或以上
- 最低分辨率达1024x768的显示环境
- 内存达64MB或更高并支持OpenGL的显示适配器
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