• Butler Matrix Based Six-port Passive Junction 

      Moscoso Mártir, Álvaro; Ávila Ruiz, Jose Manuel; Durán Valdeiglesias, Elena; Moreno Pozas, Laureano; Molina Fernández, Íñigo; [et al.] (2014-02-03)
      In this work we propose the utilization of the Butler matrix as a six-port I/Q demodulator. The inherent symmetry of its topology allows to overcome the intrinsic amplitude and phase imbalances of the traditional approaches ...