Patch Antenna - Inset Feed Calculator

# Step 2: Effective dielectric constant ereff = ((er + 1) / 2) + ((er - 1) / 2) * (1 / math.sqrt(1 + 12 * h / W))

# Step 5: Edge resistance approximation (cavity model) Rin0 = 90 * (er**2 / (er - 1)) * (L / W) patch antenna inset feed calculator

# Step 4: Effective length -> Physical length L Leff = c / (2 * f * math.sqrt(ereff)) L = Leff - 2 * delta_L # Step 2: Effective dielectric constant ereff =

# Step 3: Delta L num = (ereff + 0.3) * (W / h + 0.264) den = (ereff - 0.258) * (W / h + 0.8) delta_L = h * 0.412 * (num / den) patch antenna inset feed calculator

--- Results --- Patch width (W) : 37.26 mm Patch length (L) : 28.96 mm Effective εr : 4.125 Edge input resistance : 215.8 Ω Inset distance (y0) : 9.32 mm from edge Impedance at inset : 49.98 Ω