SWRA705 August   2021 AWR1243 , AWR1443 , AWR1642 , AWR1843 , AWR1843AOP , AWR2243 , AWR2944 , AWR6443 , AWR6843 , AWR6843AOP , AWRL1432 , AWRL6432 , IWR1443 , IWR1642 , IWR1843 , IWR2243 , IWR6243 , IWR6443 , IWR6843 , IWR6843AOP , IWRL6432 , IWRL6432AOP

 

  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

6.2 PTFE Material Rectangular Radome

In the second experiment a rectangular radome with 1.524 mm wall thickness is chosen with the PTFE sheet material. Figure 6-4 shows the picture of this Radome.

GUID-20210422-CA0I-7ZPT-XPHC-WCSF6DKQL5F8-low.jpg Figure 6-4 PTFE-Based Rectangular Radome With 1.524 mm Wall Thickness

Figure 6-5 and Figure 6-6 shows antenna radiation patterns with and without PTFE rectangular radome. It can be seen that using PTFE material reduces the amount of distortion or ripple amplitude compared to the regular ABS radome. In this case, distortion is less because the radome thickness and material were chosen to optimize transparency across the field of view.

GUID-20210422-CA0I-BCSR-P8KS-XL11GFZQK5LB-low.pngFigure 6-5 Antenna Radiation Measurement With PTFE Rectangular Radome
GUID-20210422-CA0I-MGL9-XWV5-J2LDMSJFN4HP-low.pngFigure 6-6 Antenna Radiation Measurement With no Radome