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Optical antenna gain. III - The effect of secondary element support struts on transmitter gainThe effect of a secondary-element spider support structure on optical antenna transmitter gain is analyzed. An expression describing the influence of the struts on the axial gain, in both the near and far fields, is derived as a function of the number of struts and their width. It is found that, for typical systems, the struts degrade the on-axis gain by less than 0.4 dB, and the first side-lobe level is not increased significantly. Contour plots have also been included to show the symmetry of the far-field distributions for three- and four-support members.
Document ID
19760043748
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Klein, B. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Degnan, J. J.
(NASA Goddard Space Flight Center Greenbelt, Md., United States)
Date Acquired
August 8, 2013
Publication Date
April 1, 1976
Publication Information
Publication: Applied Optics
Volume: 15
Subject Category
Optics
Accession Number
76A26714
Distribution Limits
Public
Copyright
Other

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