diff --git a/src/radio_frequency.py b/src/radio_frequency.py
new file mode 100644
index 0000000..61951c1
--- /dev/null
+++ b/src/radio_frequency.py
@@ -0,0 +1,35 @@
+import numpy as np
+
+from layerlumos.utils_materials import load_material_RF
+from layerlumos.layerlumos import stackrt0
+
+
+def calculate_shielding_effectiveness(materials, thicknesses):
+    frequencies = np.linspace(8e9, 18e9, 100)
+
+    n_k_Ag = load_material_RF('Ag', frequencies)
+    n_Ag = n_k_Ag[:, 1] + 1j * n_k_Ag[:, 2]
+
+    n_air = np.ones_like(frequencies)
+    d_air = np.array([0])
+    d_Ag = np.array([2e-8])  # Thickness of SiO2 layer in meters (e.g., 2 microns)
+
+    n_stack = np.vstack([n_air, n_Ag, n_air]).T
+    d_stack = np.vstack([d_air, d_Ag, d_air])
+
+    R_TE, T_TE, R_TM, T_TM = stackrt0(n_stack, d_stack, frequencies)
+
+    SE_TE = -10 * np.log10(T_TE)
+    SE_TM = -10 * np.log10(T_TM)
+    SE = (SE_TE + SE_TM) / 2
+
+    shielding_effectiveness = np.mean(SE)
+    return shielding_effectiveness
+
+
+if __name__ == '__main__':
+    materials = None
+    thicknesses = None
+
+    shielding_effectiveness = calculate_shielding_effectiveness(materials, thicknesses)
+    print(shielding_effectiveness)