Contribution to differential imaging using electromagnetic simulation for vehicular antenna signature analysis

  1. Solano Pérez, José Antonio 1
  2. Martínez Inglés, María Teresa
  3. Molina García-Pardo, José María 1
  4. Romeu, Jordi
  5. Jofre i Roca, Lluís
  6. Ballesteros Sánchez, Christian
  7. Rodríguez, José Víctor 1
  8. Mateo Aroca, Antonio 1
  9. Guzmán Quirós, Raúl 1
  1. 1 Universidad Politécnica de Cartagena

    Universidad Politécnica de Cartagena

    Cartagena, España


XXXVI Simposio Nacional de la Unión Científica Internacional de Radio

Año de publicación: 2021

Tipo: Aportación congreso


The trend in vehicles is to integrate a wide number of antennae and sensors operating in a variety of frequencies to sense around and for communications. The integration of these antennae and sensors in the vehicle platform is complex because of interactions of antenna radiation pattern with the vehicle structure and with other antennae/sensors. In consequence, it is required to study the radiation pattern of each antenna, or alternatively the induced currents on the vehicular surface to optimize multiple antenna integration. The novel concept of differential imaging is an alternative method to obtain the surface current distribution without introducing any perturbing probe. The aim of this communication is to contribute, by means of full wave electromagnetic simulation, to develop and confirm the approximations assumed in the differential imaging, providing an additional verification of the concept. Simulation environment and parameters were selected to replicate the same conditions as the real measurement of previous studies. The simulations have been performed using the well-proven ANSYS HFSS simulation software. The results confirm that the approximations are valid, and the differential currents are representative of the induced surface currents generated by a monopole at the top of a vehicle and the near electric field distribution.