Spacecraft antenna measurement eliminating gravity effect by using planar near-field antenna measurement technique

Citation
H. Deguchi et al., Spacecraft antenna measurement eliminating gravity effect by using planar near-field antenna measurement technique, ELEC C JP 2, 83(3), 2000, pp. 16-25
Citations number
13
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS
ISSN journal
8756-663X → ACNP
Volume
83
Issue
3
Year of publication
2000
Pages
16 - 25
Database
ISI
SICI code
8756-663X(2000)83:3<16:SAMEGE>2.0.ZU;2-Y
Abstract
Since spacecraft antennas are used in space, it is necessary to evaluate th e mirror surface error and the electrical performance of the antenna in the gravity-free state. In order to execute such an evaluation on the ground, a measurement method is desired in which the effect of gravity can be separ ately evaluated. This article proposes a method that separately evaluates t he mirror surface error inherent to the antenna and deformation by gravity, by rotating the antenna around the beam axis, and measuring the near field at each angle of rotation. An antenna is experimentally constructed, measu red, and evaluated by the proposed method. (C) 2000 Scripta Technica, Elect ron Comm Jpn Pt 2, 83(3): 16-25, 2000.