Publication Date:
2019-06-28
Description:
Techniques are presented for computing the horn near field patterns on the subreflectors and for correcting the phase center errors of the horn pattern by shaping the subreflector surface. The diffraction pattern computations for scanned beams are described. The effects of dish aperture diffraction on pattern bandwidth are investigated. A model antenna consisting of a reflector, shaped subreflector, and corrugated feed horn is described.
Keywords:
COMMUNICATIONS AND RADAR
Type:
NASA-CR-174670
,
NAS 1.26:174670
Format:
application/pdf
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