Stability analysis of an origami helical antenna using geometrically exact fully intrinsic nonlinear composite beam theory

A reconfigurable structure of antenna improves electromagnetic (EM) performance and its capability compared with other designs. The design satisfies both EM mechanical needs simultaneously. This paper studies the stability analysis a foldable helical Kresling origami pattern, which is subjected to tip follower force. simulated using geometrically-exact, fully intrinsic nonlinear composite beam theory Hodges. cross-sectional properties antenna’s are obtained Variational Asymptotic Beam Sectional (VABS) analysis. While results in agreement commercial finite element tools, numerical platform developed this offers significant computational advantages. In case study, based on Hopf-bifurcation method presented for made from Kapton fabric. behavior eigenvalues mode shapes also studied. Furthermore, we investigated effects several geometrical parameters antenna, such as number polygon sides, height, length ratio. indicate changes significantly by increasing ratio sides.