FRESNEL ZONE THEORY.

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Abstract:

This report is concerned with the state of the art of Fresnel zone thoery. Starting with Maxwells equations expressions are obtained for fields, power density, and gain in the near field of aperture antennas. The effect of the size, shape, and aperture distribution of a probe which is used to measure antenna parameters in the Fresnel region and power transfer between antennas located in each others Fresnel region is also discussed. The above quantities are discussed for various aperture distributions and aperture shapes. The effect of obstacles and the ground in the Fresnel region of an antenna on its performance are presented. Various methods, together with their limitations, for measuring Fraunhofer antenna data in the Fresnel region are also discussed. Experimental data have been included whenever available. Author

Author(s):
Lind, W. R.
Author Organization(s):
MOORE SCHOOL OF ELECTRICAL ENGINEERING UNIV OF PENNSYLVANIA PHILADELPHIA
Descriptive Note:
Interim technical rept.,
Pagination:
0246

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
MSR-66-20, RADC-TR-66-66
Contract/Grant Number(s):
AF 30(602)-3290
Task Number(s):
454002
Project Number(s):
AF-4540
Monitor Series:
TR-66-66
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*STATE OF THE ART, FIELD THEORY, GAIN, GEOPHYSICS, PERFORMANCE(ENGINEERING)
Field(s)/Group(s):
Electrical and Electronic Equipment, Radiofrequency Wave Propagation
Keyword(s):
FRESNEL ZONE
Report Date:
1966 Mar 01