Spherical antenna excited by a slot in an impedance end-wall of a rectangular waveguide

Author

Berdnik, S.L. ; Katrich, V.A. ; Nesterenko, M.V. ; Penkin, Yu.M.

Author_Institution

V.N. Karazin Kharkov Nat. Univ., Kharkov, Ukraine

fYear

2013

fDate

23-26 Sept. 2013

Firstpage

111

Lastpage

114

Abstract

The problem of electromagnetic waves radiation by a spherical antenna is solved using a rigorous self-consistent formulation. The antenna consists of a perfectly conducting sphere and a narrow slot cut in an impedance end-wall of a semi-infinite rectangular waveguide excited by a fundamental wave H₁₀. An asymptotic solution of the integral equation for a magnetic current in the slot aperture was found by a generalized method of induced magnetomotive forces (MMF). The energy characteristics of the spherical antenna were investigated numerically for various sphere radiuses and values of surface impedance of the waveguide end-wall.

Keywords

integral equations; rectangular waveguides; waveguide antennas; electromagnetic waves radiation; fundamental wave H<;sub>10<;/sub>; generalized method of induced magnetomotive forces; impedance end-wall; integral equation asymptotic solution; semiinfinite rectangular waveguide; spherical antenna; Apertures; Couplings; Electrodynamics; Electromagnetic waveguides; Impedance; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED), 2013 XVIIIth International Seminar/Workshop on

Conference_Location

Lviv

ISSN

2165-3585

Print_ISBN

978-966-02-6765-7

Type

conf

Filename

6653843