Variations in the frequency sensitivity of waveguide horns

Rectangular horns have extra parameters, when our only requirement is to design to a particular gain. We can use these to improve the design in various ways. The author has designed horns with a maximally flat frequency response. To achieve this goal, it is necessary to consider the slope of the pha...

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Published in:IEEE antennas & propagation magazine 1997-02, Vol.39 (1), p.85-88
Main Author: Hawkins, D.C.
Format: Magazinearticle
Language:English
Subjects:
Apertures
Frequency synthesizers
Geometry
Hydrogen
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creator Hawkins, D.C.
description Rectangular horns have extra parameters, when our only requirement is to design to a particular gain. We can use these to improve the design in various ways. The author has designed horns with a maximally flat frequency response. To achieve this goal, it is necessary to consider the slope of the phase-error loss. When the sum of the phase-error slopes in the E plane and H planes of the rectangular-aperture horn equals 6 dB/octave, the antenna-gain response is flat. The rate of change of phase-error loss equals the 6 dB/octave rate of increase with frequency of an aperture antenna. The article goes beyond the maximally flat frequency response to help the designer find parameters for any reasonable frequency-response gain slope.
doi_str_mv 10.1109/74.583521
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1558-4143
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source IEEE Electronic Library (IEL) Journals
subjects Apertures
Frequency synthesizers
Geometry
Hydrogen
title Variations in the frequency sensitivity of waveguide horns
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