Some Features of Waveguide/Horn Design
In transitioning a sinusoidal electromagnetic wave from source to radiating antenna a conducting waveguide operating in the lowest order H mode is often used. This waveguide can be optimized for its power handling capabilities. As a common rectangular waveguide the H1,0 mode has geometric properties which allow E-plane subdivision into some number of rectangular guides. This in turn allows convenient division or recombination of electromagnetic waves. This concept is extended to pyramidal horns which can launch the waves from one or more waveguides. The E-plane subdivision can be used for designing a metallic grating which allows passage of the wave while mechanically supporting a dielectric sheet separating vacuum from gas regions.
KeywordsRectangular Waveguide Lower Order Mode Relative Bandwidth Conducting Sheet Waveguide Cross Section
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