Title :
EM Analysis of Deformed Metal Space Frame Radome
Author :
Xu, Wei ; Duan, B.Y. ; Peng Li ; Yuanying Qiu ; Zhanchao Lin ; Yali Zong
Author_Institution :
Key Lab. of Electron. Equiment Sturcture Design, Xidian Univ., Xi´an, China
Abstract :
The presence of radome inevitably degrades the electromagnetic (EM) performance of the enclosed antenna while the deformation of the radome may make the degradations even worse. This letter studies the effect of structural deformation of a metal space frame (MSF) radome on EM performance. Far field of the antenna-radome system is obtained by adding the far field transmitted through skin to the scattered field of elements, both fields varying when deformation occurs. A 20-m MSF radome is employed for simulation, whose structural deformation under wind and self-weight is analyzed using finite element method (FEM). Several significative characteristics about the effect of deformation on EM performance are pointed out.
Keywords :
antennas; finite element analysis; radomes; reflector antennas; EM analysis; EM performance; FEM; MSF radome; antenna-radome system; deformation effect; deformed metal space frame radome; electromagnetic performance; far field; finite element method; metal space frame; reflector antennas; scattered field; structural deformation effect; Aperture antennas; Electromagnetics; Finite element analysis; Metals; Skin; Electromagnetic (EM) performance; metal space frame (MSF); radome; structural deformation;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2297733
