Diffraction Coefficients for a Slot-Excited Conical Antenna,
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 15, 1971
- Accession Number
- AD0726539
Entities
People
- David C. Pridmore-brown
Organizations
- The Aerospace Corporation