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Effect of Temperature on Electromagnetic Performance of Active Phased Array Antenna

Authors :
Song Xue
Zhihai Wang
Congsi Wang
Liu Jing
Yu Kunpeng
Wei Gao
Yan Wang
Song Xiao
Peiyuan Lian
Peng Xuelin
Du Biao
Yu Shi
Source :
Electronics, Volume 9, Issue 8, Electronics, Vol 9, Iss 1211, p 1211 (2020)
Publication Year :
2020
Publisher :
Multidisciplinary Digital Publishing Institute, 2020.

Abstract

Active phased array antennas (APAAs) can suffer from the effects of harsh thermal environments, which are caused by the large quantity of power generated by densely packed T/R modules and external thermal impacts. The situation may be worse in the case of limited room and severe thermal loads, due to heat radiation and a low temperature sink. The temperature field of the antenna can be changed. Since large numbers of temperature-sensitive electronic components exist in T/R modules, excitation current output can be significantly affected and the electromagnetic performance of APAAs can be seriously degraded. However, due to a lack of quantitative analysis, it is difficult to directly estimate the effect of temperature on the electromagnetic performance of APAAs. Therefore, this study investigated the electromagnetic performance of APAAs as affected by two key factors&mdash<br />the uniformly distributed temperature field and the temperature gradient field&mdash<br />based on different antenna shapes and sizes, to provide theoretical guidance for their thermal design.

Details

Language :
English
ISSN :
20799292
Database :
OpenAIRE
Journal :
Electronics
Accession number :
edsair.doi.dedup.....d6a533376dcfd0d4a4b99d46f81673e0
Full Text :
https://doi.org/10.3390/electronics9081211