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Estimating Waveguide Feed Directivity and SpacingApproximate curves simplify initial steps of antenna design. Maximum achievable directivity exponents plotted as functions of element spacing in wavelengths for equilateral triangular array of rectangular waveguides. Directivities and exponents calculated for circular waveguides, pyramidal horns, and other standard feeds. Designer quickly estimates element spacing necessary to achieve required directivity or directivity achievable.
Document ID
19830000144
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Rahmat-Samii, Y. (CALTECH)
Cramer, P. W. (CALTECH)
Woo, K. E. (CALTECH)
Lee, S. W. (CALTECH)
Date Acquired
August 11, 2013
Publication Date
October 1, 1983
Publication Information
Publication: NASA Tech Briefs
Volume: 7
Issue: 4
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
NPO-15603
ISSN: 0145-319X
Report Number: NPO-15603
Accession Number
83B10144
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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