Accession Number : AD0726539

Title :   Diffraction Coefficients for a Slot-Excited Conical Antenna,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Pridmore-Brown,David C.

Report Date : 15 JUN 1971

Pagination or Media Count : 44

Abstract : First-order diffraction coefficients for a slot-excited conical antenna are calculated, beginning with integral expressions for the radiation field. Simple formulas based on these coefficients are presented for the radiation patterns that correctly reproduce the interference structure, as well as predict the magnitude of the field down to quite low frequencies. Plots of the diffraction coefficients are given for both symmetric and asymmetric excitation of a circumferential slot. Radiation fields are compared with those obtained by summation of the exact normal mode series. (Author)

Descriptors :   (*SLOT ANTENNAS, ANTENNA RADIATION PATTERNS), CONICAL ANTENNAS, DIFFRACTION, CONICAL BODIES, DIFFERENTIAL EQUATIONS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE