Scattering Analysis of Electromagnetic Materials Using Fast Dipole Method Based on Volume Integral Equation

Figure 3

Bistatic RCS of a sphere array with 𝜀_𝑟1=−1, 𝜇_𝑟1=−1, 𝜀_𝑟2=2, 𝜇_𝑟2=1, 𝜀_𝑟3=−1, 𝜇_𝑟3=−1, 𝜀_𝑟4=2, and 𝜇_𝑟4=1 and performed at 0.6 GHz excited by a plane wave with the incident direction of (𝜃,𝜙)=(0^∘,0^∘).