Random Surface Reflective Plate

This work is protected under USPTO Provisional Application 61840931

• Provisional Patent Filing: 8127_013-Provisional_Final.pdf

Progress Report, VNA and anechoic chamber measurements

• Progress Report, April 2014

Surface

• Building a 40x40 cell surface, cell height random per =RANDBETWEEN(0,20)/80 + 0.25, cell size (.5-1.0)λ over 25-50 GHz.

Measurements

• Measure S-11 using the VNA in the back lab.
• Use anechoic chamber to simulate side lobe condition, measure reduction in side lobe from random surface plate versus a flat plate.

Modeling

• CST at Green Bank

Pictures and Plots

• S11 Measurement on VNA:
  

• Reflection Measurements in GB Anechoic Chamber:
  

• Reflection Measurements in GB Anechoic Chamber:
  

'RSP' = Random Surface Plate, 'FP45' = Flat Plate at 45 deg, 'HR10' = The absorber covering the plate, 'LP' = Aligned using laser pointer method