• DocumentCode
    765995
  • Title

    Dielectric slab-loaded resonant cavity for applications requiring enhanced field uniformity

  • Author

    Bernhard, J.T. ; Joines, W.T.

  • Author_Institution
    Dept. of Electr. Eng., Duke Univ., Durham, NC, USA
  • Volume
    44
  • Issue
    3
  • fYear
    1996
  • fDate
    3/1/1996 12:00:00 AM
  • Firstpage
    457
  • Lastpage
    460
  • Abstract
    This paper introduces and analyzes a rectangular resonant structure that provides an alternative to the multimode resonant cavity in applications requiring enhanced field uniformity. The resonant cavity contains four dielectric loading slabs placed along the cavity walls. Its first resonant mode is related to the uniform field distribution supported in a rectangular TEM waveguide. The electromagnetic fields within the cavity are described using a closed-form approach, with approximations taken to account for the presence of two of the loading slabs. Application of the boundary conditions leads to an eigenvalue formulation, which is used to determine resonant frequencies and electromagnetic field distributions within the cavity. Measurements of both resonant frequencies and electric field magnitudes confirm the analysis. This work provides the basis for future analyses and implementation of slab-loaded cavities in both scientific and industrial settings
  • Keywords
    cavity resonators; dielectric resonators; dielectric-loaded waveguides; eigenvalues and eigenfunctions; electromagnetic fields; rectangular waveguides; boundary conditions; closed-form approach; dielectric slab-loaded resonant cavity; eigenvalue formulation; electric field magnitudes; electromagnetic field distributions; electromagnetic fields; field uniformity; rectangular resonant structure; Boundary conditions; Dielectrics; Eigenvalues and eigenfunctions; Electromagnetic fields; Electromagnetic waveguides; Frequency measurement; Rectangular waveguides; Resonance; Resonant frequency; Slabs;
  • fLanguage
    English
  • Journal_Title
    Microwave Theory and Techniques, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9480
  • Type

    jour

  • DOI
    10.1109/22.486156
  • Filename
    486156