Artificial Impedance Surfaces for Reduced Dispersion in Antenna Feeding Systems

George Goussetis, J.L. Gomez-Tornero, A.P. Feresidis, N.K. Uzunoglu

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


An impedance surface is presented that reduces the dispersion experienced upon propagation of broadband pulses within rectangular waveguides. The surface impedance is selected so that, within a frequency range, the transverse resonance condition is satisfied for longitudinal wavenumber that varies linearly with frequency. A synthesis procedure for practical surface topologies consisting of periodic dipole arrays is described. An example involving a finite structure is employed to illustrate the reduced dispersion. Numerical simulation results obtained from in-house mode-matching method as well as HFSS are presented. A prototype is fabricated and tested experimentally validating the theoretical predictions.
Original languageEnglish
Article number5559375
Pages (from-to)3629-3636
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Issue number11
Publication statusPublished - Nov 2010

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


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