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
Link To Document