original_docstring: 
      Calculate the electric and magnetic fields in the far field of the horn.
      :param r: The distance to the field point (m).
      :param theta: The theta angle to the field point (rad).
      :param phi: The phi angle to the field point (rad).
      :param guide_height: The height of the waveguide feed (m).
      :param horn_width: The width of the horn (m).
      :param horn_effective_length: The effective length of the horn (m).
      :param frequency: The operating frequency (Hz).
      :return: The electric and magnetic fields radiated by the horn (V/m), (A/m).
      
docstring: Calculate the electric and magnetic fields in the far field of the horn.
docstring_tokens: Calculate the electric and magnetic fields in the far field of the horn .
code: def far_fields(guide_height, horn_width, horn_effective_length, frequency, r, theta, phi):
      """
      Calculate the electric and magnetic fields in the far field of the horn.
      :param r: The distance to the field point (m).
      :param theta: The theta angle to the field point (rad).
      :param phi: The phi angle to the field point (rad).
      :param guide_height: The height of the waveguide feed (m).
      :param horn_width: The width of the horn (m).
      :param horn_effective_length: The effective length of the horn (m).
      :param frequency: The operating frequency (Hz).
      :return: The electric and magnetic fields radiated by the horn (V/m), (A/m).
      """
      # Calculate the wavenumber
      k = 2.0 * pi * frequency / c
  
      # Calculate the wave impedance
      eta = sqrt(mu_0 / epsilon_0)
  
      # Define the radial-component of the electric field
      e_r = 0.0
  
      # Define the theta-component of the electric field
      e_theta = sin(phi) * (1.0 + cos(theta)) * sinc(k * guide_height * 0.5 * sin(theta) * sin(phi)) * \
                I(k, r, theta, phi, horn_width, guide_height, horn_effective_length)
  
      # Define the phi-component of the electric field
      e_phi = cos(phi) * (1.0 + cos(theta)) * sinc(k * guide_height * 0.5 * sin(theta) * sin(phi)) *\
              I(k, r, theta, phi, horn_width, guide_height, horn_effective_length)
  
      # Define the radial-component of the magnetic field
      h_r = 0.0
  
      # Define the theta-component of the magnetic field
      h_theta = -cos(phi) / eta * (1.0 + cos(theta)) * sinc(k * guide_height * 0.5 * sin(theta) * sin(phi)) * \
                I(k, r, theta, phi, horn_width, guide_height, horn_effective_length)
  
      # Define the phi-component of the magnetic field
      h_phi = sin(phi) / eta * (1.0 + cos(theta)) * sinc(k * guide_height * 0.5 * sin(theta) * sin(phi)) * \
              I(k, r, theta, phi, horn_width, guide_height, horn_effective_length)
  
      # Return all six components of the far field
      return e_r, e_theta, e_phi, h_r, h_theta, h_phi
code_tokens: def far_fields ( guide_height , horn_width , horn_effective_length , frequency , r , theta , phi ) : k = 2.0 * pi * frequency / c eta = sqrt ( mu_0 / epsilon_0 ) e_r = 0.0 e_theta = sin ( phi ) * ( 1.0 + cos ( theta ) ) * sinc ( k * guide_height * 0.5 * sin ( theta ) * sin ( phi ) ) * I ( k , r , theta , phi , horn_width , guide_height , horn_effective_length ) e_phi = cos ( phi ) * ( 1.0 + cos ( theta ) ) * sinc ( k * guide_height * 0.5 * sin ( theta ) * sin ( phi ) ) * I ( k , r , theta , phi , horn_width , guide_height , horn_effective_length ) h_r = 0.0 h_theta = - cos ( phi ) / eta * ( 1.0 + cos ( theta ) ) * sinc ( k * guide_height * 0.5 * sin ( theta ) * sin ( phi ) ) * I ( k , r , theta , phi , horn_width , guide_height , horn_effective_length ) h_phi = sin ( phi ) / eta * ( 1.0 + cos ( theta ) ) * sinc ( k * guide_height * 0.5 * sin ( theta ) * sin ( phi ) ) * I ( k , r , theta , phi , horn_width , guide_height , horn_effective_length ) return e_r , e_theta , e_phi , h_r , h_theta , h_phi
short_docstring: Calculate the electric and magnetic fields in the far field of the horn.
short_docstring_tokens: Calculate the electric and magnetic fields in the far field of the horn .
comment: """
      Calculate the electric and magnetic fields in the far field of the horn.
      :param r: The distance to the field point (m).
      :param theta: The theta angle to the field point (rad).
      :param phi: The phi angle to the field point (rad).
      :param guide_height: The height of the waveguide feed (m).
      :param horn_width: The width of the horn (m).
      :param horn_effective_length: The effective length of the horn (m).
      :param frequency: The operating frequency (Hz).
      :return: The electric and magnetic fields radiated by the horn (V/m), (A/m).
      """$SEP$# Calculate the wavenumber$SEP$# Calculate the wave impedance$SEP$# Define the radial-component of the electric field$SEP$# Define the theta-component of the electric field$SEP$# Define the phi-component of the electric field$SEP$# Define the radial-component of the magnetic field$SEP$# Define the theta-component of the magnetic field$SEP$# Define the phi-component of the magnetic field$SEP$# Return all six components of the far field