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J. Appl. Phys. 106, 014901 (2009); http://dx.doi.org/10.1063/1.3156005 (7 pages)

Resonance frequencies of cavities in three-dimensional electromagnetic band gap structures

Irina Khromova1, Ramón Gonzalo1, Iñigo Ederra1, and Peter de Maagt2

1Department of Electrical and Electronic Engineering, Public University of Navarra, Campus Arrosadia, Pamplona, Navarra E-31006, Spain
2Electromagnetics Division, ESA-ESTEC, P.O. Box 299, NL 2200 AG, The Netherlands

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(Received 16 January 2009; accepted 26 May 2009; published online 2 July 2009)

This paper is devoted to the phenomenon of resonant transmission in three-dimensional electromagnetic band gap structures (EBGs), achieved by introducing a defect into an EBG structure with the corresponding resonance frequency of the defect lying within the initial EBG region. It is shown that the resonance frequency of an EBG air cavity (acceptor defect) can either increase or decrease with increasing cavity dimensions. In particular, this paper demonstrates both experimentally and theoretically that the resonance frequency of a woodpile air cavity, formed by the partial removal of a woodpile bar, increases with increasing cavity size; it increases continuously or saturates depending on the field polarization with respect to the cavity orientation. The results obtained in this paper can be used for designing EBG devices based on resonant transmission.

© 2009 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. TWO TYPES OF ACCEPTOR DEFECTS
  3. EXPERIMENTAL SETUP
  4. DEPENDENCE OF THE RESONANCE FREQUENCY ON THE CAVITY SIZE
    1. Parallel polarization
    2. Perpendicular polarization
  5. CONCLUSION

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0021-8979 (print)  
1089-7550 (online)

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