SWRA705 August   2021 AWR1243 , AWR1443 , AWR1642 , AWR1843 , AWR1843AOP , AWR2243 , AWR2944 , AWR6443 , AWR6843 , AWR6843AOP , AWRL1432 , AWRL6432 , IWR1443 , IWR1642 , IWR1843 , IWR2243 , IWR6243 , IWR6443 , IWR6843 , IWR6843AOP , IWRL6432

 

  1.   Trademarks
  2. 1 Introduction and Challenges
  3. 2 Radome Design Elements
    1. 2.1 Understanding Dielectric Constant and Loss tangent on Radome and Antenna Design
    2. 2.2 Impedance Mismatch at Radome Boundaries
    3. 2.3 Radome Wall Thickness
    4. 2.4 Antenna to Radome Distance
  4. 3 Typical Radome Material Examples
  5. 4 Radome Angle Dependent Error
    1. 4.1 Rectangular Radome Angle Dependent Error
    2. 4.2 Spherical Radome Angle Dependent Error
    3. 4.3 Effect of the Angle Error in the Application
  6. 5 Radome Design and Simulations
  7. 6 Radome Lab Experiments
    1. 6.1 Radome Experiment – 1: Flat Plastic Radome
    2. 6.2 PTFE Material Rectangular Radome
    3. 6.3 PTFE-Based Curved Radome
  8. 7 Additional Considerations
    1. 7.1 Antenna Calibration
    2. 7.2 Radome Near Proximity Considerations
  9. 8 Summary
  10. 9 Acknowledgments
  11. 10References

4.3 Effect of the Angle Error in the Application

Figure 4-3 and Figure 4-4 shows the effect of the angle estimation error on the detected objects due to both rectangular and spherical radome. Due to the larger distance traveled at higher grazing angles in rectangular radomes, the latter is more prone to an angle estimation error relative to spherical radome structures. It may appear that the object is displaced from the original location. This angle estimation error gets more severe as object to radar distance increases.

GUID-20210422-CA0I-KTQ5-ST6C-00DGXVJFHJZF-low.pngFigure 4-3 The Effect of Angle Estimation Error With Rectangular Radomes
GUID-20210422-CA0I-JQ18-SW1J-BMJCSRKRPVGF-low.pngFigure 4-4 The Effect of Angle Estimation Error With Spherical Radomes