Frequency steerable two dimensional focusing using rectilinear leaky-wave lenses

Jose Luis Gomez-Tornero*, Fernando Quesada-Pereira, Alejandro Alvarez-Melcon, George Goussetis, Andrew R. Weily, Y. Jay Guo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)


The concept of frequency steerable two-dimensional electromagnetic focusing by using a tapered leaky-wave line source embedded in a parallel-plate medium is presented. Accurate expressions for analyzing the focusing pattern of a rectilinear leaky-wave lens (LWL) from its constituent leaky-mode tapered propagation constant are described. The influence of the main LWL structural parameters on the synthesis of the focusing pattern is discussed. The ability to generate frequency steerable focusing patterns has been demonstrated by means of an example involving a LWL in hybrid waveguide printed-circuit technology and the results are validated by a commercial full-wave solver.

Original languageEnglish
Pages (from-to)407-415
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Issue number2
Publication statusPublished - Feb 2011


  • design
  • guide
  • microstrip array
  • antenna
  • patterns
  • lens waveguides
  • electromagnetic focusing
  • near fields
  • region
  • leaky-wave antennas
  • geometrical optics
  • printed-circuit technology


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