2017
DOI: 10.4028/www.scientific.net/amm.863.266
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Analysis for Electrical Performance of Antenna Considering Gravity Deformation Based on Different Band and Elevation Angle

Abstract: Abstract.In order to ensure higher accuracy and better electrical performance of large antennas in future,this paper does some research for deformation of antenna’s reflector:modeling for 25m antenna and reappearing deformation when elevation changes every 15° just considering gravity by using ANSYS.Using results of simulation obtains deformation error curves with elevation changes, creates the conditions for compensating distortion and has a certain value. By using Ruze formula, deeply studies the regular abo… Show more

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“…In dynamic loads, gravity is the dominant factor causing the deformation of the main reflector. The gravity-induced deformation distribution varies with elevation angle and can be simulated by the antenna FE model (Wang et al 2014;Hu et al 2017;Bergstrand et al 2019;Lian et al 2021). The temperature distribution of the antenna is always time-varying, which will cause irregular deformation.…”
Section: Introductionmentioning
confidence: 99%
“…In dynamic loads, gravity is the dominant factor causing the deformation of the main reflector. The gravity-induced deformation distribution varies with elevation angle and can be simulated by the antenna FE model (Wang et al 2014;Hu et al 2017;Bergstrand et al 2019;Lian et al 2021). The temperature distribution of the antenna is always time-varying, which will cause irregular deformation.…”
Section: Introductionmentioning
confidence: 99%