Zhang S.,Xidian University |
Zhang S.,Key Laboratory of Electronic Equipment Structure Design Ministry of Education |
Du J.,Xidian University |
Du J.,Key Laboratory of Electronic Equipment Structure Design Ministry of Education |
And 7 more authors.
AIAA Journal | Year: 2015
Large deployable antennas are used aboard the spacecraft for space applications. Cable mesh reflectors are one of the most widely used deployable antennas, which have the inherent advantages of light weight, small size before deployment, and good radio frequency properties for low frequencies. Cable mesh reflector antennas are easily susceptible to surface distortion due to thermal effect and manufacturing tolerance, which can cause radiation pattern degradation such as lower gain, higher sidelobes, and beam shift. The main feature that distinguishes this study from the previous integrated shape-control methods is that both the sensitivity of far-field directivity with respect to surface nodal displacements and the sensitivity of surface nodal displacements with respect to adjustable cable lengths are added in the procedure, which makes the procedure characterized by a sequential quadratic programming optimization model.