RCS values of dihedral and triangular trihedral corner reflectors.
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What is RCS value of triangular trihedral corner reflector?
The RCS of a dihedral CR is given by 8 * pi * w ^ 2 * h ^2 / wavelength ^ 2 (i.e. 8 * pi * square of the width * square of the height / square of wavelength. So for a dihedral of width and height of 1.5m and a frequency of 5.405 GHz (for S1), the RCS is 46.17 dB.
The RCS of a trihedral CR is given by (4/3) * pi * length ^ 4 / wavelength ^ 2. So for a triedral of length 2.5m for S1, the RCS is 47.26 dB.
Also see Figure 3 of http://www.rfcafe.com/references/electrical/ew-radar-handbook/radar-cross-section.htm.