Periodic Structures On Curved Surfaces

Item

Title
Periodic Structures On Curved Surfaces
Date
1963
Index Abstract
Not Available
Photo Quality
Not Needed
Report Number
AFCRL 63-566
Creator
Lean, Eric
Gung-Hwa Ishimaru, Akira
Corporate Author
Washington Univ Seattle Coll Of Engineering
Laboratory
Air Force Cambridge Research Laboratories
Extent
27
Identifier
AD0429755
Access Rights
None
Distribution Classification
1
Contract
AF 19(628)-2763
DoD Project
5635
DoD Task
563502
DTIC Record Exists
No
Distribution Change Authority Correspondence
None
Distribution Conflict
No
Abstract
An extension is presented of the theory developed for plane periodic structures to cylindrical structures having an azimuthal periodicity. The main object is obtaining k - v diagrams (where v is the complex azimuthal propagation constant). Since the cylindrical structures considered have azimuthal periodicity, the fields can be expanded, in accordance with Floquet's theorem, in space harmonics. Two particular structures are considered: (a) the curved corrugated surface and (b) the curved periodic slotted conductors. For (a) the characteristic equation for v is obtained by equating appropriate energies on the surface of the structure; for (b), the characteristic equation is obtained by using the transverse resonance condition. An approximate solution for v is found for structure (a). In this case, a perturbation technique permits obtaining the real and imaginary part of the azimuthal propagation constant for the slow region and for the n equals minus 1 leaky wave region.
Report Availability
Full text available
Date Issued
1963-10
Provenance
Lockheed Martin Missiles & Fire Control
Type
report
Format
1 online resource
Media
AFCRL63-566.pdf

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