Accession Number : AD0623077

Title :   ANTENNA LOBE SUPPRESSION. VOLUME VI. DIFFRACTION BY CONDUCING WALLS OF FINITE THICKNESS.

Descriptive Note : Final rept., vol. 6,

Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS

Personal Author(s) : Yu,J. S. ; Rudduck,R. C.

Report Date : OCT 1965

Pagination or Media Count : 48

Abstract : Diffraction of thick walls is computed by the superposition of wedge diffractions. A new method for computing certain wedge diffractions is derived in series form of cylindrical wave functions to overcome deficiencies in Fresnel integral form. Diffraction characteristics of certain wedges are computed by both forms as functions of wedge geometry. A new technique is employed to formulate simultaneous linear equations for solving unknown coupling coefficients among wedges of a thick wall. The coupling coefficients thus solved are used to obtain continuous radiation patterns of different configurations of a thick wall. Thick wall diffraction is applicable to reduction of backlobe radiation of aperture antennas. In this regard, the electromagnetic compatibility of a thick wall for use of typical horn antennas is discussed. (Author)

Descriptors :   (*ANTENNA LOBES, HORN ANTENNAS), (*HORN ANTENNAS, ANTENNA LOBES), ANTENNA RADIATION PATTERNS, DIFFRACTION, WEDGES, THICKNESS, THEORY, EQUATIONS, NUMERICAL ANALYSIS, PERFORMANCE(ENGINEERING)

Distribution Statement : APPROVED FOR PUBLIC RELEASE