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Theoretical Analysis of a Dipole-Fed Horn Antenna

Authors:
G.V. Eleftheriades, Walid Ali-Ahmad, L.P.B. Katehi, G.M. Rebeiz
Abstract:
This antenna consists of a strip dipole printed on a membrane and suspended in an etched pyramidal silicon cavity. The entire fabrication is monolithic. For the theoretical characterization, the horn is approximated by a stepped structure of multiple rectangular waveguide sections. The fields in each section are given by a linear combination of waveguide modes, and the fields in air are given by a continuous plane wave spectrum. To evaluate the Green's function for this problem, an infinitesimally small electric dipole is considered in one of the waveguide sections. Then, the fields inside the silicon cavity are evaluated, and the far-field patterns are found from the Fourier transforms of the electric field on the aperture of the horn.
Categories:
Antennas & Telescopes, Circuits
Year:
1990
Session:
2
Full-text:
Download a PDF of this paper.
Page Number(s):
187-200