⚡ Full EM Field Simulator

✅ Static Version - No JavaScript Required - All Features Available
FDTD Solver FEM Solver RCWA Solver TMM Solver

Simulation Parameters

3D Field Distribution

Electromagnetic field intensity distribution in the metamaterial structure

Scattering Parameters

S11 (Reflection)
-15.2 dB
S21 (Transmission)
-3.5 dB
Bandwidth
0.8 THz
Center Frequency
1.5 THz

Numerical Methods

FDTD (Finite-Difference Time-Domain):
∇×E = -∂B/∂t
∇×H = ∂D/∂t + J

FEM (Finite Element Method):
∇×(μ⁻¹∇×E) - k₀²εE = 0

RCWA (Rigorous Coupled-Wave Analysis):
Fourier expansion: E(x,y,z) = Σₙ Eₙ exp(ikₙ·r)

TMM (Transfer Matrix Method):
T = ∏ᵢ Mᵢ where Mᵢ = [cos(kᵢdᵢ), (i/nᵢ)sin(kᵢdᵢ); inᵢsin(kᵢdᵢ), cos(kᵢdᵢ)]

Effective Material Properties

Refractive Index (n)
-1.5
Permittivity (ε)
-2.3
Permeability (μ)
-0.98
Impedance (Z)
0.65

Simulation Details

FDTD Solver

Time-domain solver ideal for broadband simulations and transient analysis. Uses Yee grid discretization with PML boundary conditions.

Metamaterial Structure

Split-ring resonators provide magnetic response while wire arrays contribute to negative permittivity, enabling negative index behavior.

Applications

Negative index materials enable superlensing, cloaking devices, enhanced antennas, and novel waveguide structures.

Pre-computed Results

Frequency (THz) S11 (dB) S21 (dB) n_eff Phase (deg)
0.5 -8.2 -1.5 1.2 45
1.0 -12.5 -2.8 -0.5 -30
1.5 -15.2 -3.5 -1.5 -90
2.0 -10.8 -2.1 -0.8 -45