diff --git a/src/aoa.py b/src/aoa.py
index 06d78c7..b7a8bd8 100644
--- a/src/aoa.py
+++ b/src/aoa.py
@@ -79,16 +79,21 @@ class AoA:
     )
 
     def steering_vector(self, theta: float, tof: float):
-        omega_t = self.omega_base**tof
-        phi_theta = self.phi_base ** (1 - np.cos(theta))
-
-        assert phi_theta.shape == omega_t.shape
+        omega_t = np.exp(-2j * np.pi * config.DELTA_F * tof)
+        phi_theta = np.exp(
+            2j
+            * np.pi
+            * config.CENTRAL_FREQUENCY_HZ
+            * config.ANTENNA_SPACING
+            * (1 - np.cos(theta))
+            / config.C
+        )
 
         omega_t = np.expand_dims(omega_t, axis=-1)
         phi_theta = np.expand_dims(phi_theta, axis=-1)
 
         antenna_v = omega_t ** np.arange(self.N_subcarriers // 2)
-        phis = phi_theta ** np.arange(self.N_rx)
+        phis = phi_theta ** np.arange(self.N_rx // 2)
         antenna_v = np.expand_dims(antenna_v, axis=-1)
         steering = antenna_v * phis
         return steering.T.reshape(-1)