de Oliveira RM e S, Paiva RR. A Multi-Bandgap Periodic Structure Device Acting as Multiplexer or Demultiplexer of Electromagnetic Signals. IEEE LAT AM T [Internet]. 2021 Feb. 24 [cited 2024 Apr. 25];19(1):33-41. Available from: https://latamt.ieeer9.org/index.php/transactions/article/view/1815