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Re: Constant Directivity [message #18828 is a reply to message #18827]

Sat, 19 August 2006 00:14

Wayne Parham
Messages: 18726
Registered: January 2001

Illuminati (33rd Degree)

Throat area sets a lot of things. One of them is when the horn rolls off on top due to path length differences. The phase plug is designed to reduce path length differences, to extend upper frequency response. The throat angle sets the width of the pattern at the highest frequencies. And, yes, diffraction comes into play if some horn feature is at wavelength dimensions. Something that acts as a diffraction slot will widen the pattern.

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[Message index]

		Conical Confusion By: PointSource on Thu, 17 August 2006 19:12
		Constant Directivity By: Wayne Parham on Thu, 17 August 2006 21:56
		Re: Constant Directivity By: PointSource on Thu, 17 August 2006 23:26
		Re: Constant Directivity By: Wayne Parham on Fri, 18 August 2006 01:10
		Re: Constant Directivity By: PointSource on Fri, 18 August 2006 21:06
		Re: Constant Directivity By: Wayne Parham on Sat, 19 August 2006 00:14
		Re: Constant Directivity By: PointSource on Sat, 19 August 2006 19:34

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