The Susceptance of a Circular Obstacle to an Incident Dominant Circular-Electric Wave

Item

Title
The Susceptance of a Circular Obstacle to an Incident Dominant Circular-Electric Wave
Date
1952
Index Abstract
Not Available
Photo Quality
Undetermined
Creator
Sheingold, L. S.
Corporate Author
Harvard University
Laboratory
Office of Naval Research
Date Issued
1952-06-15
Extent
41
PB Number
PB108660
Identifier
AD0006566
Access Rights
Unknown
Distribution Classification
1
DTIC Record Exists
Yes
Distribution Change Authority Correspondence
ONR LTR
Distribution Conflict
Fix
Abstract
Lower- and upper-bound expressions were obtained for the susceptance of a circular obstacle excited by the TE sub01 mode in a circular wave guide. The solutions were obtained by a variational method. Experiments showed the TE sub01 mode to be about 60 db above extraneous modes over a free-space, wave-length range of 7.30 to 11.90 cm. The discrepancies between theoretical and experimental results are attributed to finite thickness and conductivity of the obstacle, ellipticity of the circular wave guide, presence of lower-order propagating modes, and typical errors involved in the measurement of admittance by the resonance-curve method.
Report Availability
Not available via Contrails
Index In
PB/AD Index
Type
report