Accession Number : AD0474888

Title :   ANTENNA RADIATION CHARACTERISTICS WITH PARTIALLY COHERENT ILLUMINATION.

Descriptive Note : Technical documentary rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Personal Author(s) : Mitchell, Richard L.

Report Date : OCT 1965

Pagination or Media Count : 45

Abstract : The radiation characteristics of a partially coherent illuminated antenna are found for both a circular aperture and a linear antenna. The antenna illumination function is assumed to be Gaussian, and the phase structure function in the plane of the antenna is assumed to be of the form cr nu, with nu = 1, 5/3, and 2. The beam broadening and reduction in gain in dB are found to be of the form Kb alpha, where K and alpha are functions of the antenna illumination and the law of the phase structure function and b is a function of the level of the phase structure function. (Author)

Descriptors :   (*ANTENNA RADIATION PATTERNS, AIR FORCE RESEARCH), GAIN, REDUCTION, ILLUMINATION, DIFFRACTION, MATHEMATICAL ANALYSIS, PHASE MEASUREMENT.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE