Multifunctional Angular Bandpass Filter SIW Leaky-Wave Antenna

  • Alejandro Javier Martinez-Ros /
  • Jose Luis Gomez-Tornero /
  • George Goussetis
Journal ar
IEEE Antennas and Wireless Propagation Letters
  • Volumen: 16
  • Fecha: 01 enero 2017
  • Páginas: 936-939
  • ISSN: 15361225
  • Tipo de fuente: Revista
  • DOI: 10.1109/LAWP.2016.2614914
  • Tipo de documento: Artículo
  • Editorial: Institute of Electrical and Electronics Engineers Inc.
© 2002-2011 IEEE.The synthesis of broad-beam radiation patterns with increased angular rejection and bandpass filtering functionalities from a rectilinear leaky-wave antenna (LWA) is proposed. A sharpened angular filter response is obtained with shorter antennas by introducing radiation nulls adjacent to a synthesized broad beam. Moreover, exploiting the inherent dispersive properties of LWAs, aforementioned features can be combined with bandpass frequency filtering characteristics. These angular and bandpass filtering functionalities are validated with experiments performed on fabricated prototypes in a modulated substrate-integrated waveguide technology. An enhancement in the angular rejection from 1 to 2.5 dB is demonstrated for a 20¿-long antenna with a broad main beam covering the range [20, 40] at 15 GHz and with a simultaneous bandpass in the [14 GHz, 19 GHz] band.

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